Journal of Ornithology

Article	Citations
Population trends of common breeding birds in Germany 1990–2018	51
Monitoring the annual vocal activity of two enigmatic nocturnal Neotropical birds: the Common Potoo (Nyctibius griseus) and the Great Potoo (Nyctibius grandis)	29
Increased attenuation and reverberation are associated with lower maximum frequencies and narrow bandwidth of bird songs in cities	14
Seasonal dynamics in the exploitation of natural carcasses and supplementary feeding stations by a top avian scavenger	14
Breeding latitude is associated with the timing of nesting and migration around the annual calendar among Purple Martin (Progne subis) populations	13
Present and future potential distribution of the endangered Anairetes alpinus (Passeriformes: Tyrannidae) under global climate change scenarios	13
Migration route, stopping sites, and non-breeding destinations of adult Black-tailed Godwits breeding in southwest Fryslân, The Netherlands	13
Variation in timing of breeding of five woodpeckers in a primeval forest over 45 years: role of food, weather, and climate	13
Stopover dynamics of 12 passerine migrant species in a small Mediterranean island during spring migration	13
Seasonal differences in migration strategies of Red Kites (Milvus milvus) wintering in Spain	12
Dispersal and philopatry in Central European Red Kites Milvus milvus	12
Microclimate affects the distribution of grassland birds, but not forest birds, in an Alpine environment	12
Autumn migratory departure is influenced by reproductive timing and weather in an Arctic passerine	12
A skull of a very large crane from the late Miocene of Southern Germany, with notes on the phylogenetic interrelationships of extant Gruinae	11
Drone-conducted counts as a tool for the rapid assessment of productivity of Sandwich Terns (Thalasseus sandvicensis)	11
Male Great Tits (Parus major) adjust dear enemy effect expression in different breeding stages	11
Western Marsh Harriers Circus aeruginosus from nearby breeding areas migrate along comparable loops, but on contrasting schedules in the West African–Eurasian flyway	9
Aspects of the feeding ecology of introduced Rose-ringed Parakeets Psittacula krameri in the urban landscape mosaic of Durban, KwaZulu-Natal Province, South Africa	9
Nocturnal singing by diurnal birds in a temperate region of central Europe	9
Birds of the Juruá River: extensive várzea forest as a barrier to terra firme birds	9
Common patterns in the molecular phylogeography of western palearctic birds: a comprehensive review	9
Natal dispersal in Black Kites Milvus migrans migrans in Europe	8
Migration strategy, site fidelity and population size of the globally threatened Sociable Lapwing Vanellus gregarius	8
Stable isotopic analysis of stuffed specimens revealed the feeding habits of Oriental Storks Ciconia boyciana in Japan before their extinction in the wild	8
Rejection of parasitic eggs by Yellow-bellied Prinias: importance of egg spot location	8

Parental defence in shorebirds is mediated by embryonic calling, ambient temperature and predator latency	8
Functional morphology of the forelimb musculature reflects flight and foraging styles in aquatic birds	8
An iconic messenger of climate change? Predicting the range dynamics of the European Bee-eater (Merops apiaster)	7
Experimental nest replacement suggests that the bacterial load of nests may mediate nestling physiological condition in cavity nesting Great Tits (Parus major)	7
Fifteen days are enough to estimate home-range size in some long-lived resident eagles	7
A new passeriform (Aves: Passeriformes) from the early Oligocene of Poland sheds light on the beginnings of Suboscines	7
Vocal and non-vocal behavior interact differently in territorial strategies of two sympatric Rallidae species	7
Factors controlling the migration phenology of Siberian Phylloscopus species	7
Leukocyte coping capacity as a complementary stress metric in migrating birds	7
Human presence outweighs non-anthropogenic factors as a driver of avian nest parasite loads	6
Agriculture induces isotopic shifts and niche contraction in Horned Larks (Eremophila alpestris) of the Colorado Desert	6
Observations on the relationships of some Sundaic passerine taxa (Aves: Passeriformes) previously unavailable for molecular phylogenetic study	6
Population history of the Blue-backed Manakin (Chiroxiphia pareola) supports Plio-Pleistocene diversification in the Amazon and shows a recent connection with the Atlantic Forest	6
Cross the sea where it is narrowest: migrations of Pacific Swifts (Apus pacificus) between Sakhalin (Russia) and Australia	6
Effects of elevated nest box temperature on incubation behaviour and offspring fitness-related traits in the Collared Flycatcher Ficedula albicollis	6
Ranging behaviour and habitat use in Montagu’s Harrier Circus pygargus in extensive farmland of Eastern Poland	6
Strong evidence supporting a relationship between colour pattern and apparent survival in common crossbills	6
Patagonian glacial effects on the endemic Green-backed Firecrown, Sephanoides sephaniodes (Aves: Trochilidae): evidence from species distribution models and molecular data	6
Highly diversified habitats and resources influence habitat selection in wintering shorebirds	6
The optimal listening period for an effective assessment of bird richness and composition: a case study of Neotropical forest	6
Effect of introduced parasites on the survival and microbiota of nestling cactus finches (Geospiza scandens) in the Galápagos Islands	6
Chemical analysis reveals sex differences in the preen gland secretion of breeding Blue Tits	6
The level of water in the river flowing through the breeding site shapes the body condition of a lekking bird—the Great Snipe Gallinago media	6
Effects of temperature and season on birds’ dawn singing behavior in a forest of eastern China	6
Simpler methods can outperform more sophisticated ones when assessing bird migration starting date	6
Contrasting use of space by two migratory Afro-Palearctic warblers on their African non-breeding grounds	5
Revealing different migration strategies in a Baltic Common Tern (Sterna hirundo) population with light-level geolocators	5
Both morphological and behavioral traits predict interspecific social dominance in birds	5
Win – and stay, but not too long: cavity selection by Boreal Owls to minimize nest predation by Pine Marten	5
Survival during the pre-fledging period rather than during post-fledging drives variation in local recruitment of an endangered migratory shorebird, the Southern Dunlin Calidris alpina schinzii	5
Differences in transcription regulation of diurnal metabolic support to physiologically contrasting seasonal life-history states in migratory songbirds	5
Birds and the ‘Post Tower’ in Bonn: a case study of light pollution	5
Breeding habitats and long-term population numbers of two sympatric raptors—Red Kite Milvus milvus and Black Kite M. migrans— in the mosaic-like landscape of western Poland	5
Kites Milvus migrans lineatus (Milvus migrans migrans/lineatus) are spreading west across Europe	5
Seasonal and diurnal variation of vocal behaviour in duetting White-browed Sparrow Weavers	5
Vocal behavior and microgeographic variation in song types in a Neotropical songbird	5
Time available for moulting shapes inter- and intra-specific variability in post-juvenile moult extent in wheatears (genus Oenanthe)	5
Sex- but not age-biased wind turbine collision mortality in the White-tailed Eagle Haliaeetus albicilla	5
The European Turtle Dove in the ecotone between woodland and farmland: multi-scale habitat associations and implications for the design of management interventions	5
Nidicolous beetle species richness is driven by Barn Owl’s nests occupancy and landscape structure	5
Reed die-back and conservation of small reed birds at Lake Neusiedl, Austria	5
Effects of local climate and habitat heterogeneity on breeding-bird assemblages of semi-natural grasslands	5
Phenological mismatch between breeding birds and their surveyors and implications for estimating population trends	5
Female plumage polymorphism is rare in hummingbirds	5
Flight altitudes and flight activities of adult Red Kites (Milvus milvus) in the breeding area as determined by GPS telemetry	5
Migration routes and timing of European Nightjars (Caprimulgus europaeus) breeding in eastern Mongolia	5
Community engagement and data quality: best practices and lessons learned from a citizen science project on birdsong	5
Variable or atypical? Comparing unusual songs of the Tufted Titmouse with a citizen-science database	4
Extra-pair paternity in a species with frequent extra-pair courtship feedings, few extra-pair copulations, and male-biased parental care	4
Does foraging competition drive plumage convergence in three look-alike Atlantic Forest woodpecker species?	4

Blood plasma biochemistry and the effects of age, sex, and captivity in Short-toed Snake Eagles (Circaetus gallicus)	4
Quantifying bird diversity at three sites of differing herbivore presence	4
The role of avian frugivores in the germination and dispersal of fleshy-fruited Ficus species in KwaZulu-Natal, South Africa	4
Head and body orientation of the White Stork Ciconia ciconia during incubation: effect of wind, apex predators and power lines	4
Which trophic discrimination factors fit the best? A combined dietary study of a coastal seabird	4
Experimental reduction of a nest ectoparasite affects mouth coloration of nestling Cliff Swallows Petrochelidon pyrrhonota	4
First insights into migration routes and nonbreeding sites used by Red-rumped Swallows (Cecropis daurica rufula) breeding in the Iberian Peninsula	4
How many are left? Density and population size of the endangered Sierra Madre Sparrow across central Mexico	4
Avian haemosporidian prevalence and its relationship to host traits in Western Tennessee	4
Age distribution and longevity in a breeding population of Swainson’s Hawks, Buteo swainsoni	4
Migration gives sleepless nights to the birds: a study on a Palaearctic–Indian migrant, Emberiza bruniceps	4
The presence of an invasive bird, the Common Starling, in an urban landscape: habitat use and relationships with other bird species	4
Low activities of digestive enzymes in the guts of herbivorous grouse (Aves: Tetraoninae)	4
Mongolian Short-toed Lark Calandrella dukhunensis, an overlooked East Asian species	4
Markov dependencies in the song syntax of Hermit Thrush (Catharus guttatus)	4
Breeding parameters and factors influencing the reproduction of an expanding Long-legged Buzzard (Buteo rufinus) population under high breeding density conditions	4
Molecular assessment of the distribution and taxonomy of the Lesser Whitethroat Sylvia curruca complex in Iran, with particular emphasis on the identity of the contentious taxon, zagrossiensis Sarudny	4
Local timing of rainfall predicts the timing of moult within a single locality and the progress of moult among localities that vary in the onset of the wet season in a year-round breeding tropical son	4
Extensive use of the high seas by Vulnerable Fiordland Penguins across non-breeding stages	4
Age structure in a newly established and increasing population: initially high proportion of young birds among nesting Great Grey Owls	3
Ravens respond to unfamiliar corvid alarm calls	3
Clinal variation in the polymorphic Black Sparrowhawk Accipiter melanoleucus is unrelated to infection by the blood parasite Haemoproteus nisi	3
The effect of daylight exposure on the immune response and body condition of Great Tit nestlings	3
Stable isotopes (δ2H) in feathers identify non-breeding origins of the endangered Jankowski’s Bunting	3
Diet of nestling Barn Swallows in an agroecosystem: insights from fecal DNA barcoding and feather stable isotopes (δ13C, δ15N)	3
The extent of white plumage patches in female Pied Flycatchers Ficedula hypoleuca is negatively associated with corticosterone concentration in partly unpigmented feathers	3
Cranium of an Eocene/Oligocene pheasant-sized galliform bird from western North America, with the description of a vascular autapomorphy of the Galliformes	3
Population dynamics and regulation of the Middle Spotted Woodpecker in strictly protected and managed forests in Western Poland	3
Validation of a non-invasive technique for quantifying a stress-associated biomarker in a southern African hornbill	3
Underestimated scale of songbird offshore migration across the south-eastern North Sea during autumn	3
Diversification across the Isthmus of Tehuantepec explains the phylogeographic arrangement of the widespread bright-rumped Attila (Attila spadiceus; Tyrannidae) and reveals the existence of two major	3
Sex bias in parental care is associated with brood age and fledglings’ growth rate in Western Bluebirds Sialia mexicana	3
Which birds participate in mass concentrations of Bramblings Fringilla montifringilla?—Ring recoveries, biometry, age and sex composition	3
Taxonomic revision of the Long-tailed Rosefinch Carpodacus sibiricus complex	3
On the search for grasslands: long distance dispersal of spring-staging Barnacle Geese (Branta leucopsis) from a farmland area in Southeast Denmark	3
Does prey abundance affect prey size selection by the Eagle Owl (Bubo bubo)?	3
Soaring and intermittent flap-gliding during migratory flights of Northern Bald Ibis	3
No evidence that nest site choice in Pied Flycatchers is mediated by assessing the clutch size of a heterospecific, the Great Tit	3
Sex-specific growth of nestlings of the Whiskered Tern Chlidonias hybrida, a species with sexual size dimorphism and female brood desertion	3
Accelerating decline of an important wintering population of the critically endangered Spoon-billed Sandpiper Calidris pygmaea at Sonadia Island, Bangladesh	3
Adjusting trail cameras to improve monitoring of small open cup nesting birds	3
Extent and symmetry of tail moult in Amur Falcons	3
The impact of Sosnowsky’s Hogweed on feeding guilds of birds	3
Fuel management, stopover duration and potential flight range of pied flycatcher Ficedula hypoleuca staying in South-West France during autumn migration	3
Moult of overwintering Wood Warblers Phylloscopus sibilatrix in an annual-cycle perspective	3
Differential spatial migration programmes are both sex and age specific for migratory great cormorants	3
A molecular analysis of the mysterious Vaurie’s Nightjar Caprimulgus centralasicus yields fresh insight into its taxonomic status	3
Phylogeography, morphology and ecological niche modelling to explore the evolutionary history of Azure-crowned Hummingbird (Amazilia cyanocephala, Trochilidae) in Mesoamerica	3
A phasianid bird from the Pleistocene of Tainan: the very first avian fossil from Taiwan	3
Seasonally persistent foraging niche segregation between sympatric Southern Rockhopper and Magellanic penguins breeding at Isla de los Estados, Argentina	3
Environment influences the geographic phenotypic variation in Velazquez’s Woodpecker (Centurus santacruzi)	3
Unusual pattern of skipped or shortened moulting of flight feathers in late-breeding Common Shelducks	3
Call rate in Common Cuckoos does not predict body size and responses to conspecific playbacks	2
Size-assortative mating in a long-lived monogamous seabird	2
Disentangling the taxonomic status and phylogeographic structure of Marmora’s (Curruca sarda) and Balearic Warbler (Curruca balearica): a genetic multi-marker approach	2
Declining peatland bird numbers are not consistent with the increasing Common Crane population	2
The dynamics of historical and recent range shifts in the ruffed grouse (Bonasa umbellus)	2
On the importance of niche packing for local species richness in taxonomic bird groups of the Neotropical region	2
Breeding productivity, nest-site selection and conservation needs of the endemic Turkestan Ground-jay Podoces panderi	2
Azure-winged Magpies Cyanopica cyanus passed the tasks on the Uzgiris-Hunt scale of object permanence	2
Delayed plumage signals social status in a mutually ornamented bird	2
How common is hybridization in birds?	2
Description of two new bird species from the Meratus Mountains of southeast Borneo, Indonesia	2
The role of ecological and geographical drivers of lineage diversification in the Squirrel cuckoo Piaya cayana in Mexico: a mitochondrial DNA perspective	2
Protecting a heterogeneous landscape supports avian diversity across seasons on a Mediterranean island	2
Leukocyte profile variation in Dupont’s Lark (Chersophilus duponti) in Spain and Morocco	2
The ethnomedicinal use of vultures by traditional health practitioners in KwaZulu-Natal, South Africa	2
Characterization of an extinct seabird colony on the island of Santa Luzia (Cabo Verde) and its potential for future recolonizations	2
Differences in foraging behaviour of a migrating shorebird at stopover sites on regulated and unregulated sections of a large European lowland river	2
The impact of tag position and mass on motor behavior in pigeons	2
Genetic diversity and differentiation of the widespread migratory Demoiselle Crane, Grus virgo, on the northern edge of the species’ distribution	2
Bird species use of Tapinanthus dodoneifolius mistletoes parasitising African locust bean trees Parkia biglobosa in Amurum Forest Reserve, Nigeria	2
First documentation of vocal mimicry in female northern mockingbirds	2
The Yellow-breasted Barbet (Trachyphonus margaritatus) introduces vocal duets and choruses with a specific multimodal signal, during territorial advertisement	2
Great and blue tit laying dates vary with fine-scale variation in local tree composition but not tree budburst	2
Plumage coloration and morphometrics of the Little Owl Athene noctua in the Western Palearctic	2
Weather conditions determine reproductive success of a ground-nesting bird of prey in natural dune grasslands	2
Dark heterochromia in adult masked lapwings is universal, asymmetrical and possibly slightly sexually dimorphic	2
The wing morphology traits of resident birds that spend a large amount of time per day flying are similar to those of migrant birds	2
First genetic data for the critically endangered Cuban endemic Zapata Rail Cyanolimnas cerverai, and the taxonomic implications	2

Social interactions change with season and age in Northern Bald Ibis	2
Son or daughter, it does not matter: brood parasites do not adjust offspring sex based on their own or host quality	2
A new fossil from the early Oligocene of Provence (France) increases the diversity of early Gruoidea and adds constraint on the origin of cranes (Gruidae) and limpkin (Aramidae)	2
Glucocorticoids, state-dependent reproductive investment and success in the face of danger in a long-lived bird	2
Late Pleistocene owls (Aves, Strigiformes) from Ecuador, with the description of a new species	2
Contrasting patterns of natal dispersal of a south temperate House Wren population at local and regional scales	2
Heterozygosity and fitness in a threatened songbird: blood parasite infection is explained by single-locus but not genome-wide effects	2
Predominant role of survival on the population dynamics of a threatened species: evidence from prospective analyses and implication for hunting regulation	2
Exposure to sulfur in soil explains pigmentation by pheomelanin in birds inhabiting Iceland	2
Effect of food availability on offspring sex ratios in replacement clutches of Mew Gulls (Larus canus) and Black-headed Gulls (Chroicocephalus ridibundus) in the highly unstable environment of the Vis	2
Stopover-site feather isotopes uncover African non-breeding grounds of migratory passerines	2
Apparent survival and dispersal in a recovered Osprey population: effects of age, sex and social status	2
Gulls of a feather do not sleep whenever—circadian rhythm of activity of black-headed gulls Chroicocephalus ridibundus during the incubation period	2
Anting behavior in birds: the behavioral patterns and the interactions with ants in the subgenus Dendrolasius of the genus Lasius	2
The effects of temporally distinct light pollution from ships on nocturnal colony attendance in a threatened seabird	2
Body composition of American Woodcock during fall staging: a validation of the non-invasive deuterium dilution method	2
Genetic diversity in captive Yellow Cardinals (Gubernatrix cristata) from Southern Brazil: implications for the management and conservation of an endangered species	2
Impulse von weißem Rauschen lösen Gesang bei domestizierten Kanarienvögeln aus	2
Influence of age and body condition on breeding performance in Common Kingfisher Alcedo atthis	2
Female breeding dispersal to higher quality habitats in a philopatric top predator	2
Changing places: spatial ecology and social interactions of female and male Montagu’s Harrier (Circus pygargus) in the Spanish Extremadura	2
A cross-sectional field study of fall song in Northern Mockingbirds Mimus polyglottos	2
Can antibody-based assays consistently detect differences in feather corticosterone?	2
Phylogeography of Habia fuscicauda (Cardinalidae) indicates population isolation, genetic divergence and demographic changes during the Quaternary climate shifts in the Mesoamerican rainforest	2
Differences in circulating corticosterone levels associated with elevation of breeding sites in Rufous-collared Sparrows Zonotrichia capensis	2
Movements of Cyprus Wheatear Oenanthe cypriaca fledglings: evidence of a post-fledging home range away from the natal site prior to first migration	2
Female song in the Cyprus Wheatear Oenanthe cypriaca	2
Spatial convergence of meadow passerine territory distribution with mowing delay: an experiment in lowland grasslands	2
Song variation in the Caatinga suboscine Silvery-cheeked Antshrike (Sakesphorus cristatus) suggests latitude and São Francisco River as drivers of geographic variation	2
Age-related differences in reproductive success support the selection hypothesis in a Mute Swan population	1
Trichomonas gallinae infections in the naïve host Montifringilla nivalis subsp. nivalis	1
Dynamics in spatial use by Ospreys (Pandion haliaetus) during the breeding season revealed by GPS tracking	1
Prevalence of gastrointestinal parasites in a lowland Black Grouse population in Central Europe	1
Differences in stopover duration and body mass change among Emberiza buntings during autumn migration in the Russian Far East	1
Measuring circulating triglycerides in free-living birds: evaluation of a field-usable point-of-care analyzer for American woodcock	1
Evidence for seasonal changes in population structure of Reed Buntings (Emberiza schoeniclus) in the Lake Neusiedl Region: a stable-isotope approach	1
A low-cost wind tunnel for bird flight experiments	1
Breeding biology of the White-throated Kingfisher Halcyon smyrnensis smyrnensis, with emphasis on color and vocalization	1
Essential amino acid requirements of granivorous and omnivorous songbirds and the provision of natural foods	1
Lowering the cost of citizen science: can we reduce the number of sampling visits in a constant ringing effort-based monitoring program?	1
Topography and wind moulding directions of autumn migration between Europe and the West African savannas	1
Co-occurrence with Greylag Geese Anser anser and other factors affecting vigilance in White‑fronted Geese Anser albifrons during their spring staging in Central Europe	1
Short-wavelength visual sensitivity and sexual differences in plumage colouration of ovenbirds (Aves: Furnariinae)	1
Back to the future: does previously grown ornamental colouration in male House Finches reveal mate quality at the time of pair formation?	1
Irruptions of Pine Grosbeaks pulled by Rowanberry peaks in southern areas	1
First observation of a brood patch on a male sunbird (Chalcomitra amethystina)	1
Prey, management and landscape requirements of an endangered population of the Woodlark Lullula arborea in Southwest Germany	1
A trait-based approach to seasonal dynamics of an alpine and subalpine passerine bird assemblage	1
Slow song syllable rates provoke stronger male territorial responses in Eurasian Reed Warblers (Acrocephalus scirpaceus)	1
An unexpected age-related pattern in feather growth contributes to age-dependent ornament expression in a passerine bird	1
A giant raptor (Aves: Accipitridae) from the Pleistocene of southern Australia	1
Evidence of non-random mating in a colour polymorphic raptor, the Booted Eagle	1
Dynamics of stress-induced changes of leukocyte profile in Great Tits: testing effect of age	1
Exposure of White-throated Dippers to heavy metals in acidified and non-acidified streams in Norway	1
Testing the utility of condition indices in nestling swallows: a quantitative magnetic resonance approach	1
Seasonal changes in distribution and abundance of a local Corncrake population	1
First steps to success: identification of divergence among the northern and the southern lineages of African Pygmy Kingfisher (Ispidina picta) (Coraciiformes: Alcedinidae)	1
Avoidance of high-risk linear structures by Skylarks in the early breeding season and implications for conservation management	1
Incubation behaviour of the Common Ringed Plover Charadrius hiaticula at different latitudes	1
Low survival of eggs and nestlings explain the decline of a local Jankowski’s Bunting population	1
Neckband loss and its effect on apparent survival estimates in Greylag Geese (Anser anser): variation with season, sex and age	1
Disjunct resident population of Melodious Lark Mirafra cheniana discovered in East Africa	1
Woodpecker populations in winter in the interior of the European continent are highly dependent on climate change and its consequences	1
Predation risk and landscape properties shape reproductive output of an endangered sea duck from two subpopulations with contrasting predation risk	1
Linking environmental indicators to blood, feather and claw δ18O in the Saffron Finch (Sicalis flaveola) in the central Brazilian savannas	1
The influence of resting posture and orientation on alertness and escape in shorebirds	1
Yolk immunoreactive corticosterone does not relate with maternal fecal glucocorticoids in a captive population of Greater Rheas (Rhea americana)	1
The uropygial gland of the Great Cormorant (Phalacrocorax carbo): I. Morphology	1
Body size constrains the annual apparent survival of lekking Great Snipe Gallinago media males of eastern, lowland population	1
A distinct new subspecies of the white-rumped shama Copsychus malabaricus at imminent risk of extinction	1
Morphological differences between ‘Mangrove White-eye’ and montane Abyssinian White-eye (Zosterops abyssinicus arabs) in Arabia despite no differentiation in mitochondrial DNA: incipient speciation vi	1
Swallows nesting on buildings showed positive population trends except when having deeply forked tails	1
Guess who? Evaluating individual acoustic monitoring for males and females of the Tawny Pipit, a migratory passerine bird with a simple song	1
All-season space use by non-native resident Mandarin Ducks (Aix galericulata) in northeastern Germany	1
Feather stable isotope (δ2H) measurements suggest no historical variation in latitudinal origin of migrants in two declining songbirds	1
Stay or shift: does breeding success influence the decision in a cave-dwelling swiftlet?	1
Changes in over-winter prey availability, rather than winter climate, are associated with a long-term decline in a northern Tawny Owl population	1
Copying of diving behavior in the Eurasian Coot Fulica atra	1
Vocal behaviour of Sclater’s Wrens, a duetting Neotropical songbird: repertoires, dawn chorus variation, and song sharing	1
Annual survival estimates of Taiga Anser fabalis and Tundra Bean Geese A. serrirostris wintering in The Netherlands, 1967–1987	1
Birds of a feather don’t always flock together: variation in molt origins and movement patterns of winter finches in Ontario	1
Voice breaking and its relation to body mass and testosterone level in the Siberian Crane (Leucogeranus leucogeranus)	1
Resolving disputed subspecies distribution limits, and revealing intraspecific intergradation, in the Common Redstart Phoenicurus phoenicurus using citizen science and museum data	1
Vulture perceptions in a socio-ecological system: a case study of three protected areas in KwaZulu-Natal, South Africa	1
Higher reproductive performance of a piscivorous avian predator feeding on lower trophic-level diets on ponds with shorter food chains	1
Hatching asynchrony as a parental reproductive strategy in birds: a review of causes and consequences	1
Non-breeding sites, loop migration and flight activity patterns over the annual cycle in the Lesser Grey Shrike Lanius minor from a north-western edge of its range	1
Spring phenology is advancing at a faster rate than arrival times of Common Starling	1
Breeding biology of the African Pygmy Falcon: long-term variation and seasonal decline in breeding performance of an arid zone raptor	1
Konzentrierte Nahrungssuche bei Magellanspechten: Die Bedeutung von Baumalter, Waldzusammensetzung und Offenhabitaten	1
Male aggressiveness during the female fertile phase in relation to extra-pair paternity, plumage ornaments and female traits	1
Evidence of nest abandonment in Grass Wrens Cistothorus platensis suggest that non-breeding nests are not structures that differ in function from breeding nest	1
Weather, food and predation shape the timing of Marsh Tit breeding in primaeval conditions: a long-term study	1
How urban and rural birds respond to the colour of bird feeders?	1
Migration and non-breeding ecology of the Yellow-breasted Chat Icteria virens	1