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 2022-08-01 to 2026-08-01.)

Article	Citations
Rapid flight feathers moult and fat stores in the Common Snipe Gallinago gallinago in the early stage of autumn migration	97
Extra-pair paternity and sperm length variation in a far northern Great Tit (Parus major) population	27
Black Woodpeckers recolonize south-eastern border of their European range	15
Kea, bird of versatility. Kea parrots (Nestor notabilis) show high behavioural flexibility in solving a demonstrated sequence task	14
Are red-crested cardinals Paroaria coronata (Aves: Thraupidae) truly monomorphic?: evidence discloses sexual dichromatism and size differences since the nestling stage	14
Crossing the Sahara by small jumps: the complete migration of the Western Orphean Warbler Curruca hortensis	13
Breeding behaviour of Central European Red Kites: parental sex-dependent differences	13
Remarkable plasticity in route choice by migrating European Honey Buzzards from north-eastern Poland	13
Deconstructing avian flight: forelimb length correlates with coracoid dimensions in birds	13
Effects of an extreme weather event over reproduction and survival of Great Tits (Parus major) in eastern Spain	12
Habitat factors influencing the breeding birds on animal farms: can modern agricultural infrastructure be good for birds?	11
Tracking the range restricted white-spotted Bluethroat Luscinia svecica namnetum using multi-sensor and light-level loggers	10
Patterns and drivers of landscape and local habitat use by UK Hawfinches (Coccothraustes coccothraustes) during the breeding season and late winter	10
Vocal variation in female Common Cuckoos (Cuculus canorus): geographic, ecological and morphological perspectives	10
Daily movements of the Common Crane (Grus grus) during the premigration period	10
Avalanches create unique habitats for birds in the European Alps	10
Song structure of male Northern House Wrens and patterns of song production and delivery across the nesting cycle	10
Uncovering haemosporidian diversity in urban Feral Pigeons (Columba livia domestica) in Lisbon, Portugal: integrated molecular and morphological insights	9
A globally declining endemic under pressure: effects of habitat and climate change on Citril Finches in the Bavarian Alps	9
Migration routes, high-use areas, and network connectivity across the annual cycle of an arctic seabird	9
Colony attendance behavior in response to weather and moonlight conditions in Japanese Murrelets (Synthliboramphus wumizusume) depending on breeding status	9
Influence of ocean primary production on the activity pattern of wintering Common Terns	9
As the Raven flies: nest control with drones	8
Changes in over-winter prey availability, rather than winter climate, are associated with a long-term decline in a northern Tawny Owl population	8
Determining sex ratios and mitochondrial haplotypes of Hawai‘i’s endemic and introduced ducks	8

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	8
No evidence for assortative mating in the Atlantic Puffin	7
Body size constrains the annual apparent survival of lekking Great Snipe Gallinago media males of eastern, lowland population	7
A review of co-occurrence and hybridization as neglected factors in studies of Syrian Woodpecker (Dendrocopos syriacus) and Great Spotted Woodpecker (Dendrocopos major)	7
Integration of critically endangered Rüppell’s Vultures with Griffon Vultures in a newly colonized European region	7
Telemetry alone may not be reliable for a correct determination of population-level migration timing: lessons from Eleonora’s Falcon (Falco eleonorae)	7
Visual fields are repeatable at the population and individual level	7
The impact of urban-related sensory and risk factors on owls: a systematic review	7
Thermo-modernization influences nest density of Common Swifts (Apus apus): determinants of nest site choices in Poznań, Poland	7
Rüppell’s Vulture (Gyps rueppelli): a new vulture species for Europe?	7
Traditional bioacoustic analyses and machine-learning methods indicate weak vocal dimorphism in four Cerrado antbird species	7
Vocal interactions of breeding partners predict duration of incubation bout in an Artic seabird	7
Frequent duets, rare choruses, and extremely rare solos: year-round singing behavior in Chubb’s Cisticola	7
The speed and magnitude of upward movements during the warm season depend on the reproductive success of a mountain galliform	7
Sex identification based on biometrics in four long-distance migratory tern species mist-netted along the East Atlantic Flyway	7
Ferruginous springs as colouring sites for Bearded Vulture (Gypaetus barbatus): characterisation, availability and applications for species conservation in the French Pyrenees	7
Phenology of Swainson’s Thrush apparent territory establishment across an elevational gradient	7
All around the egg: consistency of spottiness and colouration across an avian eggshell	7
Seasonal variation in home-range size of the White-backed Woodpecker	6
Nest predation decreases with increasing nest height in forest songbirds: a comparative study	6
The role of winter cereals as cold-weather refuge for Taiga Bean Geese Anser fabalis fabalis wintering in Denmark	6
Determinants of primary moult suspension in Dunlins (Calidris alpina), migrating through the southern Baltic coast	6
How loud are we really? Differences in temporal and spectral parameters of calls effect sound pressure level metrics and signal propagation, as shown for four species of rail (Rallidae)	6
Predicting suitable winter habitats of Marmora’s Warbler (Curruca sarda) in North Africa using species distribution models	6
Navigating ecological barriers in the North Atlantic: migratory routes, stopover strategies and flight behaviour of Ruddy Turnstones Arenaria interpres	6
First year-round movement tracking of the Mediterranean Gull (Ichthyaetus melanocephalus) in Europe: insights and conservation recommendations for declining population	6
Correction: Predation risk and landscape properties shape reproductive output of an endangered sea duck from two subpopulations with contrasting predation risk	6
Diet and trophic niche of the Slender-billed Barn Owl (Tyto alba gracilirostris) on Lanzarote	6
Delayed plumage signals social status in a mutually ornamented bird	6
Hematophagous ectoparasites affect nestling size and physiology, but not apparent survival	6
Nest-site selection of the Iberian Green Woodpecker (Picus sharpei) in three biogeographical regions	6
The effects of temporally distinct light pollution from ships on nocturnal colony attendance in a threatened seabird	5
Seasonal dynamics of female bill colouration: an observation in captive House Sparrows (Passer domesticus)	5
Cues to individuality in Greylag Goose faces: algorithmic discrimination and behavioral field tests	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
Breeding ecology of a high-altitude shorebird in the Qinghai–Tibetan Plateau	5
Correction: Breeding ecology of African Woolly-necked Storks (Ciconia microscelis) in a human-modified, mosaic landscape in South Africa	5
Variation in corticosterone levels in Andean Condor (Vultur gryphus) feathers regarding age classes and molting periods	5
Survival differences of embryos and eaglets in a polymorphic raptor probably linked to colour morph	5
No experimental evidence of an adaptive antioxidative response induced by trace metals exposure in feral pigeons	5
Irruptions of Bohemian Waxwings in relation to population density and food availability	5
The bacterial assemblage in the plumage of the Violet-crowned Hummingbird (Ramosomyia violiceps) varies with contrasting environments in Central-Western Mexico	5
Vulture perceptions in a socio-ecological system: a case study of three protected areas in KwaZulu-Natal, South Africa	5
Abundance, breeding records, and nest site characteristics of the critically endangered Hooded Vulture (Necrosyrtes monachus) in and around Chelekleka wetland, Ethiopia	5
Microplastics and terrestrial birds: a review on plastic ingestion in ecological linchpins	5
Margins matter: the importance of field margins as avian brood-rearing habitat in an intensive agricultural landscape	5
Genome-wide DNA reveals decades-long genetic stability and intra-familial migratory site fidelity in an Asian population of Common Redshanks	5
Timing of Steller’s Eider remigial molt has delayed over 26-year span	5
Sea-crossing behaviour of two migratory eagles in relation to weather conditions	5

Comparing the effects of marking techniques on the survival of Piping Plover chicks	5
En route activity of Chilean Elaenia, a long‐distance migratory bird in South America	5
The highly endangered Bermuda Petrel (Pterodroma cahow) lacks blood parasite infections, but shows sexual differences in leukocyte counts	5
Effect of climate change and deforestation on populations of Penelope pileata (Galliformes-Cracidae)	4
Nest size parameters of Great Tits and Blue Tits: a long-term study	4
Stable isotopes reveal synchronous primary flight feather moult pattern of Atlantic Puffins (Fratercula arctica)	4
Replacement clutch of greater Spotted Eagle Clanga clanga after clutch loss: the first documented case in Poland	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
From release to migration: early ranging behaviour of headstarted Eurasian Curlews (Numenius arquata)	4
Species limits and biogeography of the White-browed Tapaculo (Scytalopus superciliaris) complex and the Puna Tapaculo (S. simonsi)	4
Inequality among offspring, correlates of recruitment and lifetime reproductive success in a long-lived raptor	4
Long-term trends of local bird populations based on monitoring schemes: are they suitable for justifying management measures?	4
Assignment of wintering Barnacle Geese (Branta leucopsis) to breeding populations using genome-wide single-nucleotide polymorphisms	4
Quality over size: acorn preference in Eurasian Jays (Garrulus glandarius)	4
The effect of daylight exposure on the immune response and body condition of Great Tit nestlings	4
Sex- and age-dependent breeding plumage acquisition in monomorphic species, the Black-headed Gull Chroicocephalus ridibundus	4
Heavy metal residues in eggshells of Common Cranes (Grus grus) nesting in an agricultural region in north-eastern Germany	4
Is the settlement of a winter territory in the European Robin Erithacus rubecula triggered by the arrival of conspecific migrants?	4
Male aggressiveness during the female fertile phase in relation to extra-pair paternity, plumage ornaments and female traits	4
Incubation behaviour of the Common Ringed Plover Charadrius hiaticula at different latitudes	4
Melanin-based plumage coloration and melanin content in organs in the barn owl	4
Foraging areas and trip duration vary with the main prey captured, in a day-foraging/night-provisioning seabird	4
Climate change and the future of the endemic Ethiopian Siskin: a looming extinction crisis	4
The use of skylark plots by the European Skylark (Alauda arvensis) in Germany	4
The Yellow-breasted Barbet (Trachyphonus margaritatus) introduces vocal duets and choruses with a specific multimodal signal, during territorial advertisement	4
Altitudinal variation in oxidative status between breeding and non-breeding seasons in a Neotropical bird	4
American Robin (Turdus migratorius) feeding young at night in an area of artificial light	4
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	4
Bird breeding season linked to sunshine hours in a marginally seasonal equatorial climate	4
From rivals to neighbours: how time reduces aggression in two woodpecker species	3
Hatch timing and parental bare part coloration are associated with chick growth in a mutually ornamented seabird	3
Timing, reproduction and biometrics of a long-distance passerine migrant in a core and a peripheral population	3
Another case of island gigantism: the extinct Hodgens’ Waterhen (Tribonyx hodgenorum) is a member of Porzana (Aves: Rallidae)	3
Stomach contents and stable isotope analysis reveal Antarctic prey in short-tailed shearwaters sampled at sea	3
Plumage colour of Blue-capped Manakin males predicts female visitation rates but does not signal avian haemosporidian infection	3
Nest survival of Crested Lark (Galerida cristata) in intensively used habitats in Central Poland	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
Spring-accelerated loop migration in the Woodchat Shrike Lanius senator	3
Citizen-science data resolves disputed subspecies limits in the lesser spotted woodpecker Dryobates minor across the Balkans and Minor Asia	3
New records of Pleistocene birds of prey from Ecuador	3
First genetically confirmed record of a wild Marsh Tit × Willow Tit hybrid (Poecile palustris × P. montanus)	3
The critically endangered Araripe Manakin (Antilophia bokermanni) is uninfected by, but probably susceptible to, haemosporidians in northeastern Brazil	3
Lowering the cost of citizen science: can we reduce the number of sampling visits in a constant ringing effort-based monitoring program?	3
Breeding probability, survival, and causes of mortality in translocated Black Grouse (Lyrurus tetrix) in the Hautes Fagnes, Belgium	3
Identification and quantification of carotenoids in supra-orbital combs of male black grouse (Lyrurus tetrix)	3
From sea to summit: shifting patterns of avian haemosporidian diversity across two Malagasy study sites	3
A new foundation for the study of bird behaviour: Konrad Lorenz’s ‘Kumpan’ paper of 1935	3
Cross-continental differences in Black-tailed Godwit breeding densities are best explained by arthropod abundance in the chick-hatching period	3
Heterophil-to-lymphocyte ratio varies with habitat fragmentation and canopy cover in a tropical understory insectivore	3
Age-related time budget and behaviour of Northern Lapwing (Vanellus vanellus) chicks	3
Hatching asynchrony as a parental reproductive strategy in birds: a review of causes and consequences	3
Effects of winter weather conditions on abundance fluctuations in a nest box breeding population of the Common Merganser Mergus merganser in the southern coast of Finland	3
The breeding ecology of the Agulhas Long-billed Lark: an endemic bird dependent on the remnant Renosterveld of the Western Cape Province, South Africa	3
Resolving disputed subspecies distribution limits, and revealing intraspecific intergradation, in the Common Redstart Phoenicurus phoenicurus using citizen science and museum data	3
Covariation between protandry and sexual size dimorphism is age specific in songbirds	3
Rainforest birds avoid biotic signal masking only in cases of high acoustic saturation	3
Coordinated discordance: strategic nest attendance for chick rearing in a monogamous seabird	3
Nigeria's vulture crisis: scarcity, collapse, and strongholds in a multi-regional assessment	3
Intraguild predation and competition between avian top predators: do expanding Eagle Owls (Bubo bubo) contribute to the decline of Northern Goshawks (Accipiter gentilis)?	3
Seasonal variation in migration routes of Common Whitethroat Curruca communis	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