OOIR: Observatory of International Research

Papers

(The TQCC of Journal of Ornithology is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-10-01 to 2025-10-01.)

Article	Citations
Crossing the Sahara by small jumps: the complete migration of the Western Orphean Warbler Curruca hortensis	46
Are red-crested cardinals Paroaria coronata (Aves: Thraupidae) truly monomorphic?: evidence discloses sexual dichromatism and size differences since the nestling stage	22
Rapid flight feathers moult and fat stores in the Common Snipe Gallinago gallinago in the early stage of autumn migration	18
Black Woodpeckers recolonize south-eastern border of their European range	14
Copying of diving behavior in the Eurasian Coot Fulica atra	12
Extra-pair paternity and sperm length variation in a far northern Great Tit (Parus major) population	11
Breeding behaviour of Central European Red Kites: parental sex-dependent differences	11
Habitat factors influencing the breeding birds on animal farms: can modern agricultural infrastructure be good for birds?	11
Daily movements of the Common Crane (Grus grus) during the premigration period	10
Effects of an extreme weather event over reproduction and survival of Great Tits (Parus major) in eastern Spain	10
Song structure of male Northern House Wrens and patterns of song production and delivery across the nesting cycle	10
Kea, bird of versatility. Kea parrots (Nestor notabilis) show high behavioural flexibility in solving a demonstrated sequence task	10
Deconstructing avian flight: forelimb length correlates with coracoid dimensions in birds	10
Patterns and drivers of landscape and local habitat use by UK Hawfinches (Coccothraustes coccothraustes) during the breeding season and late winter	9
Influence of ocean primary production on the activity pattern of wintering Common Terns	9
Avalanches create unique habitats for birds in the European Alps	9
Migration routes, high-use areas, and network connectivity across the annual cycle of an arctic seabird	8
Ferruginous springs as colouring sites for Bearded Vulture (Gypaetus barbatus): characterisation, availability and applications for species conservation in the French Pyrenees	8
Hitting all the notes: Connecticut warblers sing an extended song type	8
Vocal interactions of breeding partners predict duration of incubation bout in an Artic seabird	8
A review of co-occurrence and hybridization as neglected factors in studies of Syrian Woodpecker (Dendrocopos syriacus) and Great Spotted Woodpecker (Dendrocopos major)	8
Differences in stopover duration and body mass change among Emberiza buntings during autumn migration in the Russian Far East	7
Space use during the breeding season of three different forest-dwelling owl species in an area of sympatry: a case study of male hunting home-range sizes and overlaps	7
Seasonal variation in home-range size of the White-backed Woodpecker	7
The role of avian frugivores in the germination and dispersal of fleshy-fruited Ficus species in KwaZulu-Natal, South Africa	7

Colony attendance behavior in response to weather and moonlight conditions in Japanese Murrelets (Synthliboramphus wumizusume) depending on breeding status	7
Changes in over-winter prey availability, rather than winter climate, are associated with a long-term decline in a northern Tawny Owl population	7
Rüppell’s Vulture (Gyps rueppelli): a new vulture species for Europe?	7
Thermo-modernization influences nest density of Common Swifts (Apus apus): determinants of nest site choices in Poznań, Poland	7
Determining sex ratios and mitochondrial haplotypes of Hawai‘i’s endemic and introduced ducks	7
Sex identification based on biometrics in four long-distance migratory tern species mist-netted along the East Atlantic Flyway	7
As the Raven flies: nest control with drones	7
Two central rectrices: a temporal fingerprint for individual recognition of barred woodpeckers	7
Body size constrains the annual apparent survival of lekking Great Snipe Gallinago media males of eastern, lowland population	6
The speed and magnitude of upward movements during the warm season depend on the reproductive success of a mountain galliform	6
Predicting suitable winter habitats of Marmora’s Warbler (Curruca sarda) in North Africa using species distribution models	6
All around the egg: consistency of spottiness and colouration across an avian eggshell	6
Delayed plumage signals social status in a mutually ornamented bird	6
Frequent duets, rare choruses, and extremely rare solos: year-round singing behavior in Chubb’s Cisticola	6
First observation of a brood patch on a male sunbird (Chalcomitra amethystina)	6
Visual fields are repeatable at the population and individual level	6
Nest predation decreases with increasing nest height in forest songbirds: a comparative study	6
Sex, age, mean annual temperature and year predict the body condition in Chiroxiphia caudata (Passeriformes: Pipridae)	6
En route activity of Chilean Elaenia, a long‐distance migratory bird in South America	5
First year-round movement tracking of the Mediterranean Gull (Ichthyaetus melanocephalus) in Europe: insights and conservation recommendations for declining population	5
Nest-site selection of the Iberian Green Woodpecker (Picus sharpei) in three biogeographical regions	5
Abundance, breeding records, and nest site characteristics of the critically endangered Hooded Vulture (Necrosyrtes monachus) in and around Chelekleka wetland, Ethiopia	5
Irruptions of Bohemian Waxwings in relation to population density and food availability	5
Vulture perceptions in a socio-ecological system: a case study of three protected areas in KwaZulu-Natal, South Africa	5
The role of winter cereals as cold-weather refuge for Taiga Bean Geese Anser fabalis fabalis wintering in Denmark	5
Young, wild, and free—Subadult White-naped Crane (Antigone vipio) exhibit wider home range movements than breeding adults during the summering period	5
Differences in mortality patterns of White-tailed Eagle and Osprey in the eastern region of the Baltic Sea	5
Comparing the effects of marking techniques on the survival of Piping Plover chicks	5
Hematophagous ectoparasites affect nestling size and physiology, but not apparent survival	5
Reed die-back and conservation of small reed birds at Lake Neusiedl, Austria	5
Breeding ecology of a high-altitude shorebird in the Qinghai–Tibetan Plateau	5
The bacterial assemblage in the plumage of the Violet-crowned Hummingbird (Ramosomyia violiceps) varies with contrasting environments in Central-Western Mexico	5
Variation in corticosterone levels in Andean Condor (Vultur gryphus) feathers regarding age classes and molting periods	5
Heavy metal residues in eggshells of Common Cranes (Grus grus) nesting in an agricultural region in north-eastern Germany	4
The use of skylark plots by the European Skylark (Alauda arvensis) in Germany	4
The effects of temporally distinct light pollution from ships on nocturnal colony attendance in a threatened seabird	4
Genome-wide DNA reveals decades-long genetic stability and intra-familial migratory site fidelity in an Asian population of Common Redshanks	4
Timing of Steller’s Eider remigial molt has delayed over 26-year span	4
Margins matter: the importance of field margins as avian brood-rearing habitat in an intensive agricultural landscape	4
Migration routes and timing of European Nightjars (Caprimulgus europaeus) breeding in eastern Mongolia	4
Topography and wind moulding directions of autumn migration between Europe and the West African savannas	4
The Yellow-breasted Barbet (Trachyphonus margaritatus) introduces vocal duets and choruses with a specific multimodal signal, during territorial advertisement	4
The effect of daylight exposure on the immune response and body condition of Great Tit nestlings	4
Microplastics and terrestrial birds: a review on plastic ingestion in ecological linchpins	4
Sea-crossing behaviour of two migratory eagles in relation to weather conditions	4
Female breeding dispersal to higher quality habitats in a philopatric top predator	4
Cues to individuality in Greylag Goose faces: algorithmic discrimination and behavioral field tests	4
Seasonal dynamics of female bill colouration: an observation in captive House Sparrows (Passer domesticus)	4
Is the settlement of a winter territory in the European Robin Erithacus rubecula triggered by the arrival of conspecific migrants?	4
American Robin (Turdus migratorius) feeding young at night in an area of artificial light	4

Measuring circulating triglycerides in free-living birds: evaluation of a field-usable point-of-care analyzer for American woodcock	4
No experimental evidence of an adaptive antioxidative response induced by trace metals exposure in feral pigeons	4
All-season space use by non-native resident Mandarin Ducks (Aix galericulata) in northeastern Germany	4
The European Turtle Dove in the ecotone between woodland and farmland: multi-scale habitat associations and implications for the design of management interventions	4
Adult sex ratio in south temperate house wrens is explained by sexual differences in adult survival	4
First record of a bird footprint in Brazil (Oligocene of the Taubaté Basin) and its paleoenvironmental implications	4
Two new neoavian taxa with contrasting palaeobiogeographical implications from the early Miocene St Bathans Fauna, New Zealand	3
Foraging sites of the Eurasian Three-toed Woodpecker (Picoides tridactylus) in relation to sex in primeval forest stands of the Białowieża National Park	3
Heterophil-to-lymphocyte ratio varies with habitat fragmentation and canopy cover in a tropical understory insectivore	3
Fluctuations in population size and migration of two species of crossbills in relation to seed crop size of spruce and pine: asymmetric importance of alternative food resources	3
Foraging areas and trip duration vary with the main prey captured, in a day-foraging/night-provisioning seabird	3
New records of Pleistocene birds of prey from Ecuador	3
Nest size parameters of Great Tits and Blue Tits: a long-term study	3
Dispersal and philopatry in Central European Red Kites Milvus milvus	3
Inequality among offspring, correlates of recruitment and lifetime reproductive success in a long-lived raptor	3
Male aggressiveness during the female fertile phase in relation to extra-pair paternity, plumage ornaments and female traits	3
African birds as army ant followers	3
Climate change and the future of the endemic Ethiopian Siskin: a looming extinction crisis	3
Stomach contents and stable isotope analysis reveal Antarctic prey in short-tailed shearwaters sampled at sea	3
Hatching asynchrony as a parental reproductive strategy in birds: a review of causes and consequences	3
Nest survival of Crested Lark (Galerida cristata) in intensively used habitats in Central Poland	3
Citizen-science data resolves disputed subspecies limits in the lesser spotted woodpecker Dryobates minor across the Balkans and Minor Asia	3
Seasonal variation in migration routes of Common Whitethroat Curruca communis	3
Assignment of wintering Barnacle Geese (Branta leucopsis) to breeding populations using genome-wide single-nucleotide polymorphisms	3
Cross-continental differences in Black-tailed Godwit breeding densities are best explained by arthropod abundance in the chick-hatching period	3
Bird breeding season linked to sunshine hours in a marginally seasonal equatorial climate	3
Fuel management, stopover duration and potential flight range of pied flycatcher Ficedula hypoleuca staying in South-West France during autumn migration	3
Incubation behaviour of the Common Ringed Plover Charadrius hiaticula at different latitudes	3
Female and male body condition in the Whiskered Tern Chlidonias hybrida, a species with female offspring desertion: a test of the differential parental capacity hypothesis	3
Melanin-based plumage coloration and melanin content in organs in the barn owl	3
Quality over size: acorn preference in Eurasian Jays (Garrulus glandarius)	3
First documentation of vocal mimicry in female northern mockingbirds	3
Lowering the cost of citizen science: can we reduce the number of sampling visits in a constant ringing effort-based monitoring program?	3
Rainforest birds avoid biotic signal masking only in cases of high acoustic saturation	3
Age-related time budget and behaviour of Northern Lapwing (Vanellus vanellus) chicks	3
A new foundation for the study of bird behaviour: Konrad Lorenz’s ‘Kumpan’ paper of 1935	3
Long-term trends of local bird populations based on monitoring schemes: are they suitable for justifying management measures?	3
Effect of climate change and deforestation on populations of Penelope pileata (Galliformes-Cracidae)	3
Sex- and age-dependent breeding plumage acquisition in monomorphic species, the Black-headed Gull Chroicocephalus ridibundus	3
Species limits and biogeography of the White-browed Tapaculo (Scytalopus superciliaris) complex and the Puna Tapaculo (S. simonsi)	3
Altitudinal variation in oxidative status between breeding and non-breeding seasons in a Neotropical bird	3
Stable isotopes reveal synchronous primary flight feather moult pattern of Atlantic Puffins (Fratercula arctica)	3
Differences in foraging behaviour of a migrating shorebird at stopover sites on regulated and unregulated sections of a large European lowland river	3