Ibis

Article	Citations
Estimating bird density using passive acoustic monitoring: a review of methods and suggestions for further research	59
Implications of bacterial, viral and mycotic microorganisms in vultures for wildlife conservation, ecosystem services and public health	44
Applications of digital imaging and analysis in seabird monitoring and research	37
Urban gulls adapt foraging schedule to human‐activity patterns	36
BirdNET: applications, performance, pitfalls and future opportunities	18
Null effects of the Garcelon harnessing method and transmitter type on soaring raptors	18
Thermal effects of plumage coloration	17
Intra‐specific variation in migration phenology of American Kestrels (Falco sparverius) in response to spring temperatures	17
Sex and age differences in the diet of the Eurasian Sparrowhawk (Accipiter nisus) using web‐sourced photographs: exploring the feasibility of a new citizen science approach	17
The potential utility of carotenoid‐based coloration as a biomonitor of environmental change	16
Four‐legged foes: dogs disturb nesting plovers more than people do on tourist beaches	16
Demography of a widespread raptor across disparate regions	16
Vegetation structure influences predation rates of early nests in subarctic breeding waders	16
Killing of raptors on grouse moors: evidence and effects	15
Climate and land‐use change drive habitat loss in a mountain bird species	14
Citizen science data reveals the cryptic migration of the Common Potoo Nyctibius griseus in Brazil	14
Fast and furious: host aggression modulates behaviour of brood parasites	13
Increasing temperatures increase the risk of reproductive failure in a near threatened alpine ground‐nesting bird, the Cape Rockjumper Chaetops frenatus	13
Weather conditions explain reproductive success and advancement of the breeding season in Western Capercaillie (Tetrao urogallus)	12
Towards redressing inaccurate, offensive and inappropriate common bird names	12
Using faecal metabarcoding to examine consumption of crop pests and beneficial arthropods in communities of generalist avian insectivores	12
No sex‐specific differences in the influence of high air temperatures during early development on nestling mass and fledgling survival in the Southern Pied Babbler (Turdoides bicolor)	11
Weak migratory connectivity, loop migration and multiple non‐breeding site use in British breeding Whinchats Saxicola rubetra	11
Seabird species‐ and assemblage‐level isotopic niche shifts associated with changing prey availability during breeding in coastal Newfoundland	11
A global synthesis of the impacts of urbanization on bird dawn choruses	11

Effect of GPS tagging on behaviour and marine distribution of breeding Arctic Terns Sterna paradisaea	11
What does ‘occupancy’ mean in passive acoustic surveys?	11
Baked eggs: catastrophic heatwave‐induced reproductive failure in the desert‐adapted Zebra Finch (Taeniopygia guttata)	10
Buildings promote higher incubation temperatures and reduce nest attentiveness in a Neotropical thrush	10
When a typical jumper skips: itineraries and staging habitats used by Red Knots (Calidris canutus piersmai) migrating between northwest Australia and the New Siberian Islands	10
Inter‐colony foraging area segregation quantified in small colonies of Adélie Penguins	10
Sex‐, landscape‐ and climate‐dependent patterns of home‐range size – a macroscale study on an avian generalist predator	10
Searching for the causes of decline in the Dutch population of European Turtle Doves (Streptopelia turtur)	10
More than just refuelling: lengthy stopover and selection of departure weather by sandpipers prior to transoceanic and transcontinental flights	10
What makes an urban raptor?	10
Variation in monthly sizes of home‐ranges of Hooded Vultures Necrosyrtes monachus in western, eastern and southern Africa	10
Long‐term trends in the survival rates of adult female Common Eider Somateria mollissima at three colonies in Iceland	9
Nocturnal flight calling behaviour of thrushes in relation to artificial light at night	9
Drivers of change in mountain and upland bird populations in Europe	9
Stable isotopes demonstrate intraspecific variation in habitat use and trophic level of non‐breeding albatrosses	9
Methods to quantify avian airspace use in relation to wind energy development	9
Parental care in the Small Tree Finch Camarhynchus parvulus in relation to parasitism and environmental factors	9
Early‐life development of contrasting outbound and return migration routes in a long‐lived seabird	9
The hidden cost of disturbance: Eurasian Oystercatchers (Haematopus ostralegus) avoid a disturbed roost site during the tourist season	9
Responses of dispersing GPS‐tagged Golden Eagles (Aquila chrysaetos) to multiple wind farms across Scotland	9
Geolocators reveal variation and sex‐specific differences in the migratory strategies of a long‐distance migrant	9
Using photographic records to quantify accuracy of bird identifications in citizen science data	9
High pathogenicity avian influenza (H5N1) in Northern Gannets (Morus bassanus): Global spread, clinical signs and demographic consequences	9
Discovery of a morphologically and genetically distinct population of Black‐tailed Godwits in the East Asian‐Australasian Flyway	8
Post‐fledging migration and wintering strategies of individual juvenile Lesser Black‐backed Gulls (Larus fuscus)	8
Niche partitioning among three montane ground‐dwelling pheasant species along multiple ecological dimensions	8
Dietary niche overlap and resource partitioning among six steppe passerines of Central Spain using DNA metabarcoding	8
Community science data suggest the most common raptors (Accipitridae) in urban centres are smaller, habitat‐generalist species	8
Higher experimental ambient temperature decreases female incubation attentiveness in Zebra Finches (Taeniopygia guttata) and lower effort yields negligible energy savings	8
Misidentifications in citizen science bias the phenological estimates of two hard‐to‐identify Elaenia flycatchers	8
Modelling the effect of environmental variables on the reproductive success of Griffon Vulture (Gyps fulvus) in Sardinia, Italy	8
Nocturnal vocal behaviour of the diurnal Undulated Tinamou (Crypturellus undulatus) is associated with temperature and moon phase	8
Impacts of ambient temperature and clutch size on incubation behaviour onset in a female‐only incubator songbird	8
Upwelling systems in the migration ecology of Roseate Terns (Sterna dougallii) breeding in northwest Europe	8
Behavioural and heart rate responses to stressors in two populations of Little Penguins that differ in levels of human disturbance and predation risk	8
Non‐breeding movements of Gentoo Penguins at the Falkland Islands	8
Circannual variation in habitat use of the White‐winged Snowfinch Montifringilla nivalis nivalis	8
Unravelling diet composition and niche segregation of colonial waterbirds in a Mediterranean wetland using stable isotopes	7
A global review identifies agriculture as the main threat to declining grassland birds	7
Combining citizen science and weather radar data to study large‐scale bird movements	7
A large‐scale survey of bird plumage colour aberrations reveals a collection bias in Internet‐mined photographs	7
Reduced range size and Important Bird and Biodiversity Area coverage for the Harpy Eagle (Harpia harpyja) predicted from multiple climate change scenarios	7
Non‐random sampling along rural–urban gradients may reduce reliability of multi‐species farmland bird indicators and their trends	7
Split moult: time constraints or endogenous strategy?	7
House Wrens Troglodytes aedon reduce repertoire size and change song element frequencies in response to anthropogenic noise	7
Habitat selection of foraging male Great Snipes on floodplain meadows: importance of proximity to the lek, vegetation cover and bare ground	7
Rapid drone semi‐automated counts of wintering Greater Flamingos (Phoenicopterus roseus) as a tool for amateur researchers	7
Females compensate for moult‐associated male nest desertion in Hooded Warblers	7
Nectar provision attracts hummingbirds and connects interaction networks across habitats	7
A new, undescribed species of Melanocharis berrypecker from western New Guinea and the evolutionary history of the family Melanocharitidae	7

A non‐destructive approach to collect nest material data using photographs	7
Evidence for intraspecific phenotypic variation in songbirds along elevation gradients in central Europe	7
Sex‐specific patterns of fuelling and pre‐breeding body moult of Little Stints Calidris minuta in South Africa	7
Short‐distance nocturnal migration in an island endemic bustard	7
Aposematism and mimicry in birds	7
Differential responses of coexisting owls to annual small mammal population fluctuations in temperate mixed forest	7
Morphological divergence among Spanish Common Crossbill populations and adaptations to different pine species	7
Generating population estimates for migratory shorebird species in the world’s largest flyway	6
Dynamic space use of Andalusian rice fields by Lesser Black‐backed Gulls (Larus fuscus) is driven by flooding pattern	6
High nest failure but better nestling quality for early breeders in an alpine population of Northern Wheatear (Oenanthe oenanthe)	6
Insights on the effect of aircraft traffic on avian vocal activity	6
Habitat preferences of the Ortolan Bunting (Emberiza hortulana) in its prime wintering grounds, the cereal‐dominated Ethiopian Highlands	6
Point count offsets for estimating population sizes of north American landbirds	6
Passive acoustic monitoring of the endangered African Penguin (Spheniscus demersus) using autonomous recording units and ecoacoustic indices	6
Winter feeding influences the cost of living in boreal passerines	6
Moult terminology: Let's make it simpler!	6
Population expansion and breeding success of Bearded Vultures Gypaetus barbatus in the French Pyrenees: results from long‐term population monitoring	6
The reuse of avian samples: opportunities, pitfalls, and a solution	6
The conservation of Afro‐Palaearctic migrants: What we are learning and what we need to know?	6
Increased rice flooding during winter explains the recent increase in the Pacific Flyway White‐fronted Goose Anser albifrons frontalis population in North America	6
The importance of guano birds to the Inca Empire and the first conservation measures implemented by humans	6
The acoustic playback technique in avian fieldwork contexts: a systematic review and recommendations for best practice	6
Evaluation of disruptive camouflage of avian cup‐nests	6
Metabarcoding reveals selective dietary responses to environmental availability in the diet of a nocturnal, aerial insectivore, the European Nightjar (Caprimulgus europaeus)	6
A general scenario to evaluate evolution of grassland birds in the Neotropics	5
Urban nestlings have reduced number of feathers in Great Tits (Parus major)	5
Individual variation in parental tradeoffs between the number and size of offspring at the pre‐ and post‐natal stages	5
Movement patterns of the White‐tailed Sea Eagle (Haliaeetus albicilla): post‐fledging behaviour, natal dispersal onset and the role of the natal environment	5
Successful hybridization between non‐congeneric parrots in a small introduced population	5
Hornbill abundance and breeding incidence in relation to habitat modification and fig fruit availability	5
Occurrence and function of melanin‐based grey coloration in Western Palaearctic songbirds (Aves: Passeriformes)	5
Annual apparent survival across species is lower in juvenile than adult birds but has similar ecological correlates	5
Evaluation of ongoing Crested Ibis (Nipponia nippon) reintroduction using an integrated population model and Bayesian population viability analysis	5
Density dependence in Golden Eagle Aquila chrysaetos fecundity better explained by individual adjustment than territory heterogeneity	5
Lack of protected areas and future habitat loss threaten the Hyacinth Macaw (Anodorhynchus hyacinthinus) and its main food and nesting resources	5
Factors determining nest‐site selection of surface‐nesting seabirds: a case study on the world's largest pelagic bird, the Wandering Albatross (Diomedea exulans)	5
The effect of habitat quality on the blood parasite assemblage in understorey avian insectivores in the Eastern Himalaya, India	5
Mitochondrial substitution rates estimation for divergence time analyses in modern birds based on full mitochondrial genomes	5
Habitat and weather conditions influence reproductive rates of suburban and rural Red‐shouldered Hawks Buteo lineatus	5
Extra‐pair paternity in Blue Tits (Cyanistes caeruleus) depends on the combination of social partners' age	5
High resource overlap and small dietary differences are widespread in food‐limited warbler (Parulidae) communities	5
Flight characteristics forecast entry by eagles into rotor‐swept zones of wind turbines	5
The ongoing narrative of Ivory‐billed Woodpecker rediscovery and support for declaring the species extinct	5
Sex ratio of Western Bluebirds (Sialia mexicana) is mediated by phenology and clutch size	5
Contrasting recovery trajectories of four reintroduced populations of the Endangered Mauritius Kestrel (Falco punctatus)	5
Yearly temperature fluctuations and survey speed influence road counts of wintering raptors	5
Gaps in genetic knowledge affect conservation management of kiwi (Apteryx) species	4
The importance of wetland habitat area for waterbird species‐richness	4
Contrasting long‐term trends in age‐specific survival of Peregrine Falcons (Falco peregrinus) in Britain using smoothed estimates of recovery probabilities	4
Assessing the effects of habitat characteristics and co‐occurrence with closely related species on occupancy of resident ‘wood‐warblers’ in a Neotropical working landscape	4
Effects of overhead power‐lines on the density of ground‐nesting birds in open sub‐arctic habitats	4
Demography of Common Swifts (Apus apus) breeding in the UK associated with local weather but not aphid biomass	4
The adaptive function of construction of multiple non‐breeding nests in birds	4
The meaning of purely structural colour: white plumage reflectance indicates feather condition	4
Hidden effects of high numbers of tourists in protected areas: displacement of foraging top scavengers	4
Neotropical bromeliads as food sources for birds: a systematic review and perspectives on the management of ecological interactions	4
Female and male Leach's Storm Petrels (Hydrobates leucorhous) pursue different foraging strategies during the incubation period	4
Structured phylogeography and restricted gene flow among populations of Fairy Tern (Sternula nereis) across Australasia: implications for the endangered New Zealand population	4
High genetic diversity despite drastic bottleneck in a critically endangered, long‐lived seabird, the Mascarene Petrel Pseudobulweria aterrima	4
Biological conclusions about importance of order in mobbing calls vary with the reproductive context in Great Tits (Parus major)	4
Island life accelerates geographic radiation in the white‐eyes (Zosteropidae)	4
Sex difference in natal dispersal distances of Golden Eagles Aquila chrysaetos in Scotland	4
The role of body size in nest‐site selection by secondary cavity‐nesting birds in a subtropical Chaco forest	4
Conservation genomics of the endangered Seychelles Magpie‐Robin (Copsychus sechellarum): a unique insight into the history of a precious endemic bird	4
The British List: A Checklist of Birds of Britain (10th edition)	4
Effects of changes in bird community composition and species abundance on plant reproduction, through pollination and seed dispersal	4
Free access of published DNA sequences facilitates regular control of (meta‐) data quality – an example from shorebird mitogenomes (Aves, Charadriiformes: Charadrius)	4
Stable isotopes reveal unexpected relationships between fire history and the diet of Spotted Owls	4
Risk‐taking behaviour relates to timing of breeding in a sub‐Antarctic rainforest bird	4
The Red‐billed Leiothrix (Leiothrix lutea): a new invasive species for Britain?	3
The Eurasian Treecreeper (Certhia familiaris) has an effective camouflage against mammalian but not avian vision in boreal forests	3
Knowledge gaps and biases in the Pantanal indicate future directions for ornithological research in large wetlands	3
Combining historical accounts with contemporary bird survey data identifies changes in an avian community over a period of anthropogenic change	3
Overall dynamic body acceleration as an indicator of dominance in Homing Pigeons (Columba livia)	3
Day–night cycle influences the division of incubation in the Hooded Dotterel (Thinornis cucullatus)	3
Phylogenetic relationships and systematics of the bamboo‐specialistAmaurospizablue seedeaters	3
Diel and seasonal variation of Striped Cuckoo (Tapera naevia) vocalizations revealed using automated signal recognition	3
The mechanistic, genetic and evolutionary causes of bird eye colour variation	3
Elevational plumage divergence in the Rufous‐capped Babbler (Cyanoderma ruficeps) on a mountainous island	3
Avian responses to forest fragmentation during the breeding and non‐breeding seasons	3

When birds sing at the same pitch, they avoid singing at the same time	3
Rapid assessment of the extent of feral introgression in British and Irish Rock Dove (Columba livia) populations	3
Challenges for incorporating long‐term baselines into biodiversity restoration: A case study of the Dalmatian Pelican (Pelecanus crispus) in Britain	3
Central‐West Siberian‐breeding Bar‐tailed Godwits (Limosa lapponica) segregate in two morphologically distinct flyway populations	3
Nest survival of threatened Eurasian Curlew (Numenius arquata) breeding at low densities across a human‐modified landscape	3
Adult survival and per‐capita production of young explain dynamics of a long‐lived goose population	3
Moult chronology and strategies of sympatric Great (Ardenna gravis) and Sooty (A. grisea) Shearwaters based on stable isotope analysis	3
Nesting and post‐fledging predation risk influence diel patterns of songbird fledging	3
Species, subspecies or morph—what was the Canary Islands Oystercatcher?	3
Twitter conferences as a low‐carbon, far‐reaching and inclusive way of communicating research in ornithology and ecology	3
The causes and implications of sex role diversity in shorebird breeding systems	3
Non‐breeding distribution and at‐sea activity patterns of the smallest European seabird, the European Storm Petrel (Hydrobates pelagicus)	3
A synthesis of Eurasian Curlew (Numenius arquata arquata) demography and population viability to inform its management	3
Competitive events during nest‐building influence offspring growth and behaviour, but not testosterone deposition in the egg yolk in Western Bluebirds (Sialia mexicana)	3
Nomadic breeders Snowy Owls (Bubo scandiacus) do not use stopovers to sample the summer environment	3
Influence of the haemosporidian Leucocytozoon spp. over reproductive output in a wild Neotropical passerine, the Thorn‐tailed Rayadito (Aphrastura spinicauda)	3
Vocal behaviour, parasitic infection, chronic stress and body condition in rufous‐naped wrens (Campylorhynchus rufinucha)	3
Welcome aboard: are birds migrating across the Mediterranean Sea using ships as stopovers during adverse weather conditions?	3
Yellow Cardinal (Gubernatrix cristata) males respond more strongly to local than to foreign dialects	3
Shorebird embryos exhibit anti‐predator responses	3
Identifying the winter grounds of the recently described Barbary Reed Warbler (Acrocephalus baeticatus ambiguus)	3
High trophic niche overlap in mixed‐species colonies using artificial nests	3
Falcon fuel: metabarcoding reveals songbird prey species in the diet of juvenile Merlins (Falco columbarius) migrating along the Pacific Coast of western North America	3
Toward scoping reviews of individual bird species	3
Long‐term within‐season changes in the diet of Common Guillemot (Uria aalge) chicks at a North Sea colony: implications for dietary monitoring	3
No evidence that cameras affect shorebird nest survival on the coastal plain of Arctic National Wildlife Refuge, AK	3
Allopreening in the Black‐browed Albatross (Thalassarchemelanophris): an exploration of patterns and possible functions	2
Aerial insect biomass, but not phenological mismatch, is associated with chick survival of an insectivorous bird	2
Genomic data reveal contrasting patterns of divergence among island and mainland birds of the Eastern Mediterranean	2
High site and mate fidelity in a monogamous Arctic seabird	2
Accounting for clinal variation and covariation in the assessment of taxonomic limits: why we should remember the ‘rules’	2
Description of two new Cisticola species endemic to the marshes of the Kilombero floodplain of southwestern Tanzania	2
Factors influencing Cinnamon Teal nest attendance patterns	2
Carry‐over effects of environmental stochasticity of the California Current on body condition and wing length of breeding Black‐vented Shearwaters (Puffinus opisthomelas)	2
Human activities at night negatively impact Little Penguin (Eudyptula minor) numbers and behaviours	2
Assessing the fatty acid profile of migratory birds with different fuelling strategies	2
Estimating nest‐switching in free‐ranging wild birds: an assessment of the most common methodologies, illustrated in the White Stork (Ciconia ciconia)	2
Cryptic hybridization between Common (Apus apus) and Pallid (A. pallidus) Swifts	2
Semi‐automated detection of tagged animals from camera trap images using artificial intelligence	2
Historical avifaunal change and current effects of hiking and road use on avian occupancy in a high‐latitude tundra ecosystem	2
The effect of conservation interventions on the abundance of breeding waders within nature reserves in the United Kingdom	2
The birds of ancient Britain: first recommendations for Category F of the British List	2
Early Eocene fossil illuminates the ancestral (diurnal) ecomorphology of owls and documents a mosaic evolution of the strigiform body plan	2
Seasonally divided moult in the Barred Warbler (Sylvia nisoria) is an endogenously controlled strategy	2
The number of Great Tit mobbers influences the mobbing response of heterospecific birds	2
Does human scent bias the survival of bird nests?	2
The Great Auk (Pinguinus impennis) had two brood patches, not one: confirmation and implications	2
Embryonic vocalizations mediate parental care in Masked Lapwings (Vanellus miles) but not Red‐capped Plovers (Charadrius ruficapillus)	2
Significance of plumage colour for winter survival in the Tawny Owl (Strix aluco): revisiting the camouflage hypothesis	2
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator	2
Life‐stage and sex influence Philornis ectoparasitism in a Neotropical woodpecker Melanerpes striatus with essential male parental care	2
Cross‐icecap spring migration confirmed in a high‐Arctic seabird, the Ivory Gull Pagophila eburnea	2
Bird genetic databases need improved curation and error reporting to NCBI	2
The role of wind fetch in structuring Antarctic seabird breeding occupancy	2
Global diversity and adaptations of avian eggshell thickness indices	2
Genomic and morphological data help uncover extinction‐in‐progress of an unsustainably traded hill myna radiation	2
Assessing vagrants from translocated populations and defining self‐sustaining populations of non‐native, naturalized and translocated avian species	2
Phylogeographical history of the Olive Woodpecker Dendropicos griseocephalus, a species widely distributed across Africa	2
Male Superb Lyrebirds (Menura novaehollandiae) perform an ornate multimodal display immediately following copulation	2
Predicting population trends of birds worldwide with big data and machine learning	2
Abundance determines core–periphery roles of birds in a Neotropical seed dispersal network	2
Reduced breeding success in Great Black‐backed Gulls (Larus marinus) due to harness‐mounted GPS device	2
Landscape and climatic predictors of Kentish Plover (Charadrius alexandrinus) distributions throughout Kazakhstan	2
Australian Magpies discriminate between the territorial calls of intra‐ and extra‐group conspecifics	2
Does early spring arrival lead to early nesting in a migratory shorebird? Insights from remote tracking	2
Food and habitats requirements of the Eurasian Scops Owl (Otus scops) in Switzerland revealed by very high‐resolution multi‐scale models	2
The influence of surrounding habitat, behaviour and interspecific competition on nestbox use by endangered Glossy Black Cockatoos (Calyptorhynchus lathami halmaturinus)	2
Alternative future land use options in the British uplands	2
Urban and coastal breeding lesser black‐backed gulls (Larus fuscus) segregate by foraging habitat	2
Systematic revision of the ‘diminutive’ Kentish Plover (Charadriidae: Charadrius) with the resurrection of Charadrius seebohmi based on phenotypic and genetic analyses	2
Using citizen science to assess drivers of Common House Martin Delichon urbicum breeding performance	2
Lincoln's sparrow (Melospiza lincolnii) increases singing rate in areas with chronic industrial noise	2
Perceived risks and rewards of foraging sites strongly affect density and condition of non‐breeding Hudsonian Godwits	2
The influence of egg presence and eggshell colour in the attraction of visually oriented predators to nests of a tropical forest bird	2
Vocal traits of shorebird chicks are related to body mass and sex	1
Small rails from the late Quaternary of the Southern High Plains and their palaeoenvironmental context	1
Vocal responses of Hermit Thrush (Catharus guttatus) males to territorial playback of conspecific song	1
Storing prey in larders affects nestling haematological condition in the Red‐backed Shrike (Lanius collurio)	1
Proximity to metal mining is related to aspects of feather coloration but not fluctuating asymmetry in the Russet‐crowned Motmot (Momotus mexicanus) in south‐central Mexico	1
Seasonality in niche occupation revealed through bird community functional structure in the southern Atlantic rainforest	1
British Ornithologists’ Union Records Committee (BOURC): 52nd Report (January 2021)	1
Song complexity is associated with habitat quality in an upland passerine	1
Global range dynamics of the Bearded Vulture (Gypaetus barbatus) from the Last Glacial Maximum to climate change scenarios	1
Social information affects prospecting, but not settlement, by Black‐and‐white Warblers (Mniotilta varia)	1
Species status and phylogenetic relationships of the enigmatic Negros Fruit Dove (Ptilinopus arcanus)	1
Plenty of rooftops with few neighbours occupied by young breeding Yellow‐legged Gulls (Larus michahellis): Does this occur at the expense of their health condition?	1
Wing and leg bone microstructure reflects migratory demands in resident and migrant populations of the Dark‐eyed Junco (Junco hyemalis)	1
Spatio‐temporal variation in post‐recovery dynamics in a large Peregrine Falcon (Falco peregrinus) population in the Jura mountains 2000–2020†	1
A distinct new species ofZosteropswhite‐eye from the Sulawesi region, Indonesia	1
Variation in mesopredator abundance and nest predation rate of the endangered Strange‐tailed Tyrant (Alectrurus risora)	1
Improving waterbird monitoring and conservation in the Sahel using remote sensing: a case study with the International Waterbird Census in Sudan	1
Preen oil composition of Pied Flycatchers is similar between partners but differs between sexes and breeding stages	1
British Ornithologists' Union Records Committee (BOURC): 53rd Report (January 2022)	1
British Ornithologists’ Union Records Committee (BOURC): 54th Report (July 2022)	1
Effects of sodium heparin on δ13C, δ15N and δ34S values in avian whole blood	1