Ibis

Article	Citations
BOU Page	137
British Ornithologists’ Union Records Committee (BOURC): 57th Report (January 2025)	109
Book Review	76
Monitoring wader breeding productivity	54
Similar survival of birds between wet and seasonally dry Neotropical environments	42
Issue Information	38
The adaptive function of construction of multiple non‐breeding nests in birds	31
Variation in mesopredator abundance and nest predation rate of the endangered Strange‐tailed Tyrant (Alectrurus risora)	30
Optimization of passive acoustic bird surveys: a global assessment of BirdNET settings	28
Geolocation reveals wintering sites of near‐extinct Caucasian breeding sea duck	26
An automated workflow that combines sound‐based bird identification and localization	26
Large‐scale depth‐related seasonal distribution patterns of a benthic‐feeding sea duck in two contrasting marine systems	23
Using citizen science image analysis to measure seabird phenology	23
Extreme drought affects exploratory behaviour and use of agricultural habitat in wintering Greater White‐fronted Geese ( Anser albifrons )	20
Book Reviews	19
A new species of nightjar (Caprimulgus) from Timor and Wetar, Lesser Sunda Islands, Wallacea	18
Acknowledgement of Reviewers	16
Simultaneous passive acoustic monitoring uncovers evidence of potentially overlooked temporal variation in an Amazonian bird community	16
Book Reviews	15
Investigating connectivity and seasonal differences in wind assistance in the migration of Common Sandpipers	15
The potential for climate change to intensify nest‐site competition between two sympatric owl species	14
Song complexity is associated with habitat quality in an upland passerine	14
Issue Information	14
Source amplitude increases with body‐mass across avian genera	14
DNA metabarcoding complements but does not replace direct observations of penguin predation by corvids	13

Using acoustic indices to detect interspecific bird interactions and behaviour	13
Spatio‐temporal differences in the diet and trophic ecology of Kelp Gulls (Larus dominicanus) in South Africa	12
Using satellite tracking to assess the use of protected areas and alternative roosts by Whooper and Bewick's Swans	12
No detrimental effects of wing‐harnessed GPS devices on the breeding performance of Yellow‐legged Gulls (Larus michahellis): A multi‐colony evaluation	12
Environmental drivers of gadfly petrel vagrancy in the Southwest Pacific	12
Demography of Common Swifts (Apus apus) breeding in the UK associated with local weather but not aphid biomass	12
The structural function of the bubbling call of the female common cuckoo (Cuculus canorus)	12
Nest attachment, rather than nest type, correlates with passerine bird brain size	11
Factors determining persistent asymmetry and egg shape in birds: A hypothesis	11
Spatial patterns of local dialects of the declining Corn Bunting ( Emberiza calandra ) in three regions with different population densities and small‐sca	11
Unexpected diversity of alternative reproductive tactics revealed in Water Rails ( Rallus aquaticus )	11
British Ornithologists Union: Janet Kear Union Medal	11
Essential steps for establishing a large‐scale passive acoustic monitoring for an elusive forest bird species: the Eurasian Woodcock ( Scolopax rusticola	11
Storm events will simultaneously reduce foraging opportunities and affect movements of Red Knots ( Calidris canutus ) in the intertidal Wadden Sea	11
Absence of negative effect of GPS‐tags on survival and breeding success in a long‐lived territorial raptor	10
Variability of a consistent trait: The size of the white wing patch in European Stonechats (Saxicola rubicola rubicola)	10
Connection between ecological niche changes and population trends in the Eurasian Skylark (Alauda arvensis) breeding in lowland and mountain areas of Southern Europe	10
Comparative support for the social complexity hypothesis in the calls of two closely related species – Tufted Titmice Baeolophus bicolor and Black‐creste	10
The ongoing narrative of Ivory‐billed Woodpecker rediscovery and support for declaring the species extinct	10
Split moult: a response to time constraints during the main moult period	10
Artificial light alters spatial and temporal habitat use by a crepuscular aerial insectivore	10
	10
Erratum	10
Exploration speed in Red Knots affects spring migration timing, but only after experimentally constrained fuelling conditions	10
	10
Foraging niche partitioning within a recently established guild of falcons	10
Beyond the pair bond: Extra‐pair paternity and quasi‐parasitism in a Blue‐footed Booby colony	10
Estimating Little Penguin population sizes using automated acoustic monitoring and citizen science	10
Acclimatization length and post‐release spatial cohesion in translocated Griffon Vultures ( Gyps fulvus)	9
Regional‐scale and life‐history drivers of breeding timing and nest success in subtropical South American passerines	9
	9
Distinct bird communities in forests and fruit farms of Caatinga landscapes	9
Species characteristics predict the effectiveness of avian survey methods in an Afromontane sky‐island	9
Nest survival of threatened Eurasian Curlew (Numenius arquata) breeding at low densities across a human‐modified landscape	9
Acknowledgement of Reviewers	9
Acknowledgement of Reviewers	9
Bird deterrent measures at a landfill decreased the productivity of a dependent population of White Stork ( Ciconia ciconia )	9
British Ornithologists' Union – Early Professional Award 2026	9
The importance of wetland habitat area for waterbird species‐richness	9
The influence of sample size on two approaches to estimate Black Grouse Lyrurus tetrix population size using non‐invasive sampling methods	9
Dynamic changes in the avian gut microbiome in response to diverse lifestyles	8
Space–time home‐range estimates and resource selection for the Critically Endangered Philippine Eagle on Mindanao	8
Temporal constraints influence reproductive characteristics that are related to the pace‐of‐life continuum in geese	8
Field‐based evidence of impaired sperm quality associated with conventional farming in two passerine birds	8
Stable isotope data indicate origins of mislabelled historical bird specimens	8
Niche modelling reveals conservation challenges and priorities for the threatened Pampas Meadowlark in South American agroecosystems	8
Variation in nest‐site occupancy and breeding outcome in a threatened Subantarctic raptor	8
British Ornithologists' Union Records Committee (BOURC): 58th Report (January 2026)	8
Causes of vagrancy of North Asian passerines in western Europe	8
Unlocking avian museum collections to enable and advance environmental change research	8

Soft song provokes stronger aggressive responses than broadcast song in the Plain Laughingthrush (Pterorhinus davidi)	7
British Ornithologists' Union – Early Professional Award 2025	7
BOU Page	7
Irruptions of crossbills Loxia spp. in northern Europe – patterns and correlations with seed production by key and non‐key conifers	7
The effect of conservation interventions on the abundance of breeding waders within nature reserves in the United Kingdom	7
	7
Estimating the mass of the Great Auk (Pinguinus impennis) and its egg	7
British Ornithologists’ Union Records Committee (BOURC): 56th Report (January 2024)	7
Challenges in population monitoring: Bar‐tailed Godwits ( Limosa lapponica ) on the East Atlantic Flyway defy assumed population structure	6
Divergent foraging habitat preferences between summer‐breeding and winter‐breedingProcellariapetrels	6
Functions of avian elongated tails, with suggestions for future studies	6
Issue Information	6
Conservation and management implications of the effects of wildfire on a threatened Eastern Iberian Reed Bunting (Emberiza schoeniclus witherbyi) population	6
Acoustic niche partitioning among seven cuckoo species in a forest in eastern China	6
Reproductive consequences of mate retention and divorce in a short‐lived migratory passerine	6
Inadequate reproductive success is a potential cause of Spotted Flycatcher ( Muscicapa striata ) population decline in England	6
Effects of sex and sampling site on the relative proportion of pesticides in uropygial gland secretions of European Blackbirds (Turdus merula)	6
Non‐native parrot species expand the trait space of avian communities by filling empty niches in urban areas	6
	6
Behavioural responses are associated with mortality and mobility after reintroduction in the endangered Yellow Cardinal	6
Variable social organization and breeding system of a social parrot revealed by genetic analysis	6
Citizen science data confirm that expanding non‐breeding distributions of goose and swan species correlate with their increasing abundance	6
Riparian forests and open landscapes in the West African Sahel are key wintering habitats for the threatened European Turtle‐dove (Streptopelia turtur)	6
Morphological differences between wild and game‐farm Mallards (Anas platyrhynchos) in North America	6
Book Review	6
Issue Information	6
Book Review	6
Contents	5
Wintering area and experience effects on spring migration strategies, timing and breeding success in Icelandic‐nesting Common Scoters (Melanitta nigra)	5
Erratum	5
Long‐term increase in female body condition and its effect on reproduction in two European red‐listed species, Common Pochard (Aythya ferina) and Tufted Duck (Aythya fuligula)	5
Anthropogenic and natural factors are associated with bird dawn chorus onset in subtropical East Asia	5
Seasonal, environmental and individual determinants of double‐brooding in the White‐throated Dipper ( Cinclus cinclus )	5
Simulated fireworks disrupt behaviour, but apparently not glucose or corticosterone levels in captive Atlantic canaries Serinus canaria	5
Multi‐scale habitat overlap in two broad‐ranged sympatric Neotropical forest eagles reveals shared environmental space and habitat use	5
Natal philopatry, dispersal and age of first breeding in relation to size and sex of Arctic Terns ( Sterna paradisaea )	5
Life in the fast and slow lanes: contrasting timing of annual cycle events in high‐ and mid‐latitude breeding Whooper Swans (Cygnus cygnus)	5
A distinct new species ofZosteropswhite‐eye from the Sulawesi region, Indonesia	5
Contents	5
Population genetics and phylogeography of North American Merlins (Falco columbarius) in thepost‐DDT era	5
Generative‐AI policies vary widely across top ornithology journals	5
British Ornithologists' Union – Godman Salvin Prize	5
Disturbance‐dependent Yellow‐legged Gull (Larus michahellis) predation on Larid chicks decreases with chick age	5
Using model‐based distance sampling to estimate decadal population change in Northern Gannets (Morus bassanus) across periods spanned by different at‐sea survey methods	5
Temperature sensitivity of breeding phenology and reproductive output of the Common Redstart ( Phoenicurus phoenicurus )	5
Time‐stressed Bar‐tailed Godwits exploit novel prey during migratory fuelling	5
Ski‐pistes can compensate for the climate change‐driven loss of bird communities of avalanche tracks in the Alps	5
Nesting and post‐fledging predation risk influence diel patterns of songbird fledging	5
Using empirical data analysis and expert opinion to identify farmland‐associated bird species from their habitat associations	5
Free‐living Black‐tailed Godwits maintain constant intake rates across varying grassland habitat conditions by adjusting their foraging behaviour	4
A Neolithic rock engraving apparently showing a Great Auk being captured	4
Reducing bias in shorebird nest survival rates across a large Arctic landscape	4
Inferred costs and functional consequences of stone morphometry in the stone‐carrying displays of Black Wheatear (Oenanthe leucura)	4
Nest clustering correlates with breeding phenology rather than female relatedness in Red‐breasted Mergansers (Mergus serrator)	4
iOrnithology : a review of the use of web‐sourced photographs and videos in ornithological research	4
Peter J. Jones 1945–2024	4
Linking eBird data with high spatiotemporal remote sensing products to estimate occupancy of bird populations across the island of Ireland	4
Ringing, tracking and counting data reveal five wintering patterns in European Common Shelducks	4
Fruit abundance may fine‐tune timing of reproduction of the Chilean Elaenia (Elaenia chilensis), a long‐distance migratory bird in South America	4
Beyond the breeding grounds: identifying post‐breeding staging areas, corridors and ecological niche of the Lesser Kestrel	4
Issue Information	4
A diet perspective on the impact of the COVID ‐19 lockdown on urban bird assemblages	4
Dietary shifts driven by invasive plants reshape the gut microbiota of a neotropical thrush	4
Bird traits and nest stage mediate the effects of nest‐site characteristics on nest survival in cavity‐nesting birds of the humid Chaco	4
Moult phenology advances under hot or dry conditions for two passerines across 16 years in a Mediterranean climate	4
Experience increases defensive responses of White‐fronted Woodpeckers towards the invasive European Starling	4
Vocal individuality measures reveal spatial and temporal variation in roding behaviour in Woodcock (Scolopax rusticola)	4
British Ornithologists’ Union – Early Professional Award 2024	4
Perceived risks and rewards of foraging sites strongly affect density and condition of non‐breeding Hudsonian Godwits	4
Non‐breeding home range and habitat use by European Pied Flycatcher ( Ficedula hypoleuca ) in northwest Liberia: apparent resilience to forest degradatio	4
Bird diversity peaks at intermediate bamboo cover in the Argentinian Atlantic Forest	4
Isotopic assignment to origins of Eurasian Woodcock wintering in Britain and Ireland	4
The need for a flyway approach in defining the onset of prenuptial migration of huntable bird species across Europe	4
Multimodal signalling in manakins: lack of correlated evolution between acoustic, visual and behavioural traits	3
Dietary flexibility and high arthropod availability prevent food limitation in a mountain population of breeding Northern Wheatears	3
Lincoln's sparrow (Melospiza lincolnii) increases singing rate in areas with chronic industrial noise	3
Relationships between chick vocalizations and parental absence in Kentish Plovers	3
Current and future effectiveness of protected areas for the conservation of endemic owls from the Atlantic Forest	3
Use and definitions of the terms arena, lek and court in describing avian courtship sites	3
A half century of monitoring reveals contrasting survival responses of Icelandic seabirds to climate and fisheries pressures	3

Extra‐pair paternity is not repeatable between years in Pied Flycatchers (Ficedula hypoleuca): a role for social context	3
Abundance‐related systematic bias in the quantification of phenology using site presence‐based survey methods	3
Bird community dynamics across the rice cycle in small‐scale rainfed floodplain fields in West Africa	3
Asian Koels do not lay eggs matching the host eggs' phenotype	3
Connectivity between breeding sites, wintering areas, and migration routes in Common Terns ( Sterna hirundo ) breeding in the Western Palaearctic	3
Horizontal prey distribution determines the foraging performance of short‐ and long‐billed waders in virtual resource landscapes	3
Climate, habitat availability and human activity shape the wintering distribution of an increasing migratory piscivorous raptor within the Mediterranean basin	3
Diel and seasonal variation of Striped Cuckoo (Tapera naevia) vocalizations revealed using automated signal recognition	3
Genetic diversity and the implications of captive rearing for a small population of Black‐tailed Godwits	3
Corrigendum	3
Cowbirds use conspecific social information to detect host nests in the wild	3
Shelters or ecological traps? Context‐dependent effects of nestboxes on breeding success in a colonial raptor	3
Issue Information	3
Age, sex and individual identity are associated with the escape behaviour of Common Blackbirds ( Turdus merula ) in a European city	3
Moult is associated with higher diversity of food items in the diet of Common Bulbuls (Pycnonotus barbatus) in Cameroon	3
Parental care assists fledglings in achieving adult‐like plumage and foraging behaviours in the Golden‐winged Warbler	3
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Differences in plumage coloration between ventral and dorsal regions on Atlantic Forest birds	3
Mixed population trends inside a California protected area: Evidence from long‐term community science monitoring	3
Bird genetic databases need improved curation and error reporting to NCBI	3
Global range dynamics of the Bearded Vulture (Gypaetus barbatus) from the Last Glacial Maximum to climate change scenarios	3
Colony attendance and moult pattern of Cory's Shearwaters (Calonectris borealis) differing in breeding status and age	3
Genetic structure of the Japanese Robin (Larvivora akahige) endemic to East Asian islands	3
A synthesis of Eurasian Curlew (Numenius arquata arquata) demography and population viability to inform its management	3
An a priori assessment of the impact of harvesting from five wild populations for conservation translocations	3
Environmental correlates of spatio‐temporal patterns of colour variation in a bird of prey: The common buzzard ( Buteo buteo )	3
Moult terminology: Let's make it simpler!	3
Human activities at night negatively impact Little Penguin (Eudyptula minor) numbers and behaviours	2
Issue Information	2
Book Review	2
Arnthor Gardarsson 1938–2022	2
Global extinction of Slender‐billed Curlew ( Numenius tenuirostris )	2
High site and mate fidelity in a monogamous Arctic seabird	2
Urban birds' detectability is affected by inter‐ and intraspecific variation in shyness	2
Assessing the reproductive consequences of mate retention and pair bond duration in Thorn‐tailed Rayadito (Aphrastura spinicauda), a short‐lived, socially monogamous neotropical bird	2
British Ornithologists' Union Godman‐Salvin Prize	2
Australian Magpies discriminate between the territorial calls of intra‐ and extra‐group conspecifics	2
Habitat partitioning and spatial segregation at multiple scales promotes year‐round coexistence in a guild of forest songbirds	2
	2
The number of Great Tit mobbers influences the mobbing response of heterospecific birds	2
Book Review	2
The lack of a role of body asymmetry in shaping tick load in European Robins ( Erithacus rubecula ) during autumn migration	2
Book Reviews	2
The difficult challenge of accurately recording iris colour in birds revealed through the lens of specimens of Australia's Spinifex Pigeon (Geophaps plumifera)	2
Wing patch size predicts assortative mating but not reproductive outcomes in the Daurian Redstart ( Phoenicurus auroreus )	2
Nest‐site selection and reproductive success of a critically endangered parrot, the Great Green Macaw (Ara ambiguus), in an anthropogenic landscape	2
Unexpected spatial aggregation between two species of hummingbirds and their inconsistent spatial interactions with native and exotic plants in an urban ecological reserve	2
Evidence of two types of coordinated vocalizations used in different territorial defence contexts by an Asian cooperative breeder	2
Exposure to traffic noise weakens territory defence in the Southern Emu‐wren ( Stipiturus malachurus )	2
	2
Adoption of non‐related goslings and intergenerational family cohesion among Greenland White‐fronted Geese (Anser albifrons flavirostris)	2
When slow explorers are fast: Personality‐related differences in timing of migration in Red Knots (Calidris canutus)	2
Towards large‐scale abundance assessments through automated birdsong detection and distance estimation	2
Fight song: variation in singing behaviour and song structure during natural agonistic interactions in a tropical songbird, Adelaide's Warbler ( Setophaga adelaidae	2
Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve	2
Correction to “Monitoring wader breeding productivity”	2
Issue Information	2
Camelthorn and blackthorn trees provide important resources for Southern Pied Babblers (Turdoides bicolor) in the Kalahari	2
Skylark conservation in alpine habitats should focus on areas where conspecifics are already present	2
Past research and future directions in understanding how birds use their sense of smell	2
High survival promotes persistence in a reintroduced population of Common Crane (Grus grus)	2
Conspecific density and habitat quality drive the defence and vocal behaviour of a territorial passerine	2
Are morphometric traits cryptic indicators of sexual size dimorphism in ‘monomorphic’ species? Evidence from the King Vulture ( Sarcoramphus papa )	2
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?	2
Author Index	2
Continued population recovery and high annual survival rates of White‐rumped Vultures in Nepal	2
Book Reviews	2
James John Maitland Flegg (1937–2024)	2
Modelling the national breeding distribution and population size of an elusive forest bird, the Eurasian Woodcock ( Scolopax rusticola )	2
The influence of a cooling water system on waterbird habitat use in a coastal environment	1
Stable isotope evidence for suspended moult and age‐related differences in moult location in the trans‐Saharan migratory Alpine Swift	1
King Penguins adjust foraging effort rather than diet when faced with poor foraging conditions	1
Using age‐ratios to investigate the status of two Siberian Phylloscopus species in Europe	1
Acoustic recording complements camera traps for monitoring sensitive penguin populations	1
Differential impact of anthropogenic noise during the acoustic development of begging calls in Blue Tits (Cyanistes caeruleus)	1
The phenology and clutch size of UK Blue Tits does not differ with woodland composition	1
Icelandic Whimbrel first migration: Non‐stop until West Africa, yet later departure and slower travel than adults	1
Characterizing Ancient Murrelet Synthliboramphus antiquus movement behaviour during breeding‐season foraging trips using hidden Markov models	1
Wood Thrush ( Hylocichla mustelina ) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica	1
BOU Page	1
Using photographic records to quantify accuracy of bird identifications in citizen science data	1
Revisiting the systematic position of the enigmatic Nicobar Bulbul (Ixos nicobariensis)	1
Mountain is calling – decrypting the vocal phenology of an alpine bird species using passive acoustic monitoring	1
BOU Page	1
Assessing the importance of individual‐ and colony‐level variation when using seabird foraging ranges as impact assessment and conservation tools	1
Modelling migration dynamics of Common Cranes and Eurasian Spoonbills as hydrological flow	1
Systematic revision of the ‘diminutive’ Kentish Plover (Charadriidae: Charadrius) with the resurrection of Charadrius seebohmi based on phenotypic and genetic analyses	1
Life‐stage and sex influence Philornis ectoparasitism in a Neotropical woodpecker Melanerpes striatus with	1
Population genetic structure associated with a landscape barrier in the Western Grasswren (Amytornis textilis textilis)	1
Genomic insights into the evolutionary and demographic histories of the extinct Hoopoe Starling (Fregilupus varius)	1
Fast cultural evolution of Crossbill (Loxia spp.) calls in the Palaearctic	1
A novel deep learning‐based bioacoustic approach for identification of look‐alike white‐eye (Zosterops) species traded in wildlife markets	1
Yellow Cardinal (Gubernatrix cristata) males respond more strongly to local than to foreign dialects	1
Chemical aposematism: the potential for non‐host odours in avian defence	1
British Ornithologists’ Union – Godman Salvin Prize	1