Ornithology

Article	Citations
Integrative taxonomy and geographic sampling underlie successful species delimitation	37
Current methods and future directions in avian diet analysis	36
The genomic revolution and species delimitation in birds (and other organisms): Why phenotypes should not be overlooked	27
An overview of speciation and species limits in birds	27
Elevational niche-shift migration: Why the degree of elevational change matters for the ecology, evolution, and physiology of migratory birds	23
Migration distance is a fundamental axis of the slow-fast continuum of life history in boreal birds	23
Bill size, bill shape, and body size constrain bird song evolution on a macroevolutionary scale	21
Sixty-second Supplement to the American Ornithological Society’sCheck-list of North American Birds	18
Evaluating the impacts of metabarcoding primer selection on DNA characterization of diet in an aerial insectivore, the Purple Martin	17
Phylogeny based on ultra-conserved elements clarifies the evolution of rails and allies (Ralloidea) and is the basis for a revised classification	16
Sixty-fourth Supplement to the American Ornithological Society’s Check-list of North American Birds	15
Ultraconserved elements resolve the phylogeny and corroborate patterns of molecular rate variation in herons (Aves: Ardeidae)	15
Temperature and vegetation complexity structure mixed-species flocks along a gradient of elevation in the tropical Andes	14
Evolution of the preformative molt in Cardinalidae correlates with transitions from forest to open habitats	13
Army-ant following in Neotropical birds: A review and prospectus	12
The Pacific as the world’s greatest theater of bird migration: Extreme flights spark questions about physiological capabilities, behavior, and the evolution of migratory pathways	12
The American Kestrel (Falco sparverius) genoscape: implications for monitoring, management, and subspecies boundaries	12
Preston’s universal formula for avian egg shape	11
Heat shock protein gene expression varies among tissues and populations in free-living birds	10
Application of a global age-coding system (“WRP”), based on molts and plumages, for use in demographic and other studies of birds	10
Latitude does not influence cavity entrance orientation of South American avian excavators	10
Genomic and geographic diversification of a “great-speciator” (Rhipidura rufifrons)	10
DNA metabarcoding reveals broad woodpecker diets in fire-maintained forests	10
Comparative phylogeographic analysis suggests a shared history among eastern North American boreal forest birds	10
Rapid recovery by fat- and muscle-depleted Blackpoll Warblers following trans-oceanic migration is driven by time-minimization	10

DNA metabarcoding reveals broadly overlapping diets in three sympatric North American hummingbirds	10
Species limits in birds: Australian perspectives on interrelated challenges of allopatry, introgression of mitochondrial DNA, recent speciation, and selection	10
Multiple lines of evidence indicate ongoing allopatric and parapatric diversification in an Afromontane sunbird (Cinnyris reichenowi)	9
Vertical sexual habitat segregation in a wintering migratory songbird	9
Systematics and conservation of an endemic radiation ofAccipiterhawks in the Caribbean islands	9
Genetic data and niche differences suggest that disjunct populations ofDiglossa brunneiventrisare not sister lineages	9
Extensive hybridization between two Andean warbler species with shallow divergence in mtDNA	9
Ecological and evolutionary drivers of geographic variation in songs of a Neotropical suboscine bird: The Drab-breasted Bamboo Tyrant (Hemitriccus diops, Rhynchocyclidae)	9
Performance of a points-based scoring system for assessing species limits in birds	9
Ecological and evolutionary significance of molt in lowland Neotropical landbirds	8
Plasma metabolite indices are robust to extrinsic variation and useful indicators of foraging habitat quality in Lesser Scaup	8
Season, anthocyanin supplementation, and flight training have mixed effects on the antioxidant system of migratory European Starlings	8
Dry season intensity has equivocal effects on the nutritional condition of understory birds in a Neotropical forest	8
A habitat-based approach to determining the effects of drought on aridland bird communities	8
Nest cavity reuse by the cooperatively breeding Acorn Woodpecker	7
Phylogenomic analysis confirms the relationships among toucans, toucan-barbets, and New World barbets but reveals paraphyly of Selenidera toucanets and evidence for mitonuclear discordance	7
Mass gain and stopover dynamics among migrating songbirds are linked to seasonal, environmental, and life-history effects	7
Genome-wide data reveal paraphyly in the sand plover complex (Charadrius mongolus/leschenaultii)	7
Extinct crane-like birds (Eogruidae and Ergilornithidae) from the Cenozoic of Central Asia are indeed ostrich precursors	7
Reduced diurnal activity and increased stopover duration by molting Swainson’s Thrushes	7
Variation in incubation length and hatching asynchrony in Eastern Kingbirds: Weather eclipses female effects	7
Experimental evidence that social information affects habitat selection in Marbled Murrelets	7
Updating splits, lumps, and shuffles: Reconciling GenBank names with standardized avian taxonomies	6
A new genus and species of tanager (Passeriformes, Thraupidae) from the lower Yungas of western Bolivia and southern Peru	6
Mixed-species flocking is associated with low arthropod detectability and increased foraging efficiency by Yungas forest birds in Argentina	6
Landscape cover type, not social dominance, is associated with the winter movement patterns of Snowy Owls in temperate areas	6
When to depart from a stopover site? Time since arrival matters more than current weather conditions	6
Contact calls of island Brown-throated Parakeets exhibit both character and variance shifts compared to calls of their mainland relatives	6
Lineage diversity in a widely distributed New World passerine bird, the House Wren	6
Haemosporidian prevalence and community composition vary little across a chickadee hybrid zone	6
High-intensity flight feather molt and comparative molt ecology of warblers of eastern North America	5
Morphology, vocalizations, and mitochondrial DNA suggest that the Graceful Prinia is two species	5
Addendum to the Sixty-first Supplement to the American Ornithological Society’s Check-list of North American Birds	5
Early nest initiation and vegetation density enhance nest survival in Wild Turkeys	5
Neither sex appears to benefit from divorce within migratory Northern Flickers consistent with accidental loss and bet-hedging	5
Female and male song exhibit both parallel and divergent patterns of cultural evolution: A long-term study of song structure and diversity in tropical wrens	5
Endogenous biomarkers reveal diet partitioning among three sympatric species of swallows	5
Avian taxonomy in turmoil: The 7-point rule is poorly reproducible and may overlook substantial cryptic diversity	5
Cryptic speciation in the Warbling Vireo (Vireo gilvus)	5
Low levels of hybridization between domestic and wild Mallards wintering in the lower Mississippi Flyway	5
Exceptional variation in the appearance of Common Murre eggs reveals their potential as identity signals	5
Nestling Savannah Sparrows and Tree Swallows differ in their sensitivity to weather	5
Put some muscle behind it: Understanding movement capacity of tropical birds	5
Sixty-third supplement to the American Ornithological Society’sCheck-list of North American Birds	5
Haemosporidian parasite diversity and prevalence in the songbird genusJuncoacross Central and North America	4
Genomic variation in the Black-throated Green Warbler (Setophaga virens) suggests divergence in a disjunct Atlantic Coastal Plain population (S. v. waynei)	4
Underestimated Neotropical diversity: Integrative taxonomy reveals two unrelated look-alike species in a suboscine bird (Pachyramphus albogriseus)	4
The Big Boom Theory: The Common Nighthawk wing-boom display delineates exclusive nesting territories	4
Phylogenomic analyses reveal non-monophyly of the antbird generaHerpsilochmusandSakesphorus(Thamnophilidae), with description of a new genus forHerpsilochmus sellowi	4
Hatching failure is greater in altricial bird species with cavity nests and large clutches	4

Faster growth and larger size at crèche onset are associated with higher offspring survival in Adélie Penguins	4
Resource allocation underlies parental decision-making during incubation in the Manx Shearwater	4
Physiological condition reflects polymorphism at the toll-like receptors in a colonial waterbird	4
Extensions and limitations of MacArthur (1958): A review of ecological and evolutionary approaches to competition and diet in the New World wood warblers (Parulidae)	4
Pacific Barrow’s Goldeneye refine migratory phenology in response to overwintering temperatures and annual snowmelt	3
Context-specific behavior serves as a mechanism of interspecific cohesion in mixed-species flocks	3
Ultraconserved elements support the elevation of a new avian family, Eurocephalidae, the white-crowned shrikes	3
Beaver activity and red squirrel presence predict bird assemblages in boreal Canada	3
Winds aloft over three water bodies influence spring stopover distributions of migrating birds along the Gulf of Mexico coast	3
Studying individual-level interactions can transform our understanding of avian mixed-species flocks	3
Interannual consistency of migration phenology is season- and breeding region-specific in North American Golden Eagles	3
The evolution of enclosed nesting in passerines is shaped by competition, energetic costs, and predation threat	3
A neuroendocrine perspective on the origin and evolution of cooperative breeding	3
Body size is associated with yearling breeding and extra-pair mating in the Island Scrub-Jay	3
Taming the temperature: Sagebrush songbirds modulate microclimate via nest-site selection	3
Evidence of differing staging strategies between adult and juvenile Semipalmated Sandpipers highlights the importance of small staging sites in Atlantic Canada	3
Cultural conformity and persistence in Dickcissel song are higher in locations in which males show high site fidelity	3
Filoplume morphology covaries with their companion primary suggesting that they are feather-specific sensors	3
Visual predators and diurnal nest predation provide support for the Skutch Hypothesis and explain evolved incubation behaviors in a montane tropical bird community	3
Ecological release and insular shifts in avian morphological traits in the Caribbean	2
A desert songbird with no confamilials in the Western Hemisphere (Verdin,Auriparus flaviceps) investigates divergent conspecific songs	2
Community-sourced sightings of atypical birds can be used to understand the evolution of plumage color and pattern	2
Vulnerable Neotropical migratory songbird demonstrates flexibility in space use in response to rainfall change	2
Experimentally reduced feather microbial loads improve reproductive performance in captive Zebra Finches	2
Modeling phenological reaction norms over an elevational gradient reveals contrasting strategies of Dusky Flycatchers and Mountain Chickadees in response to early-season temperatures	2
Threshold models improve estimates of molt parameters in datasets with small sample sizes	2
The roles of abiotic and biotic factors in driving range shifts: An invasive Pomacea snail facilitates Rostrhamus sociabilis (Snail Kite) northward range expansion	2
Long-term, not short-term, temperatures predict timing of egg laying in European Starling	2
Causes and consequences of nest-site fidelity in a tropical lekking bird: Win-stay-lose-shift tactics are unrelated to subsequent success, but site-faithful females nest earlier	2
Asymmetric song recognition does not influence gene flow in an emergent songbird hybrid zone	2
The high-energy aerial insectivore lifestyle of swallows does not produce clear thermogenic side effects	2
The biotic and abiotic drivers of timing of breeding and the consequences of breeding early in a changing world	2
Singing on the nest is a widespread behavior in incubating Northern Mockingbirds and increases probability of nest predation	2
Plumage coloration differs between offspring raised in natural cavities and nestboxes	2
Winter range shifts and their associations with species traits are heterogeneous in eastern North American birds	2
Melospiza melodia (Song Sparrow) bill size is primarily shaped by thermoregulation on the California Channel Islands	2
Corrigendum to: Phylogeny based on ultra-conserved elements clarifies the evolution of rails and allies (Ralloidea) and is the basis for a revised classification	2
High within-clutch repeatability of eggshell phenotype in Barn Swallows despite less maculated last-laid eggs	2
Sexual dichromatism may not be a good index of sexual or natural selection in the blue cardinalids (Aves: Passeriformes)	2
Reproductive roles as likely drivers of sexual dimorphism in New Zealand’s endangered mountain parrot, the Kea	2
Manipulating parental condition affects brood sex ratio, immunocompetence, and early chick mortality in two gull species differing in sexual size dimorphism	1
Punctuated evolution of bill morphology in the largest family of songbirds (Thraupidae)	1
Year-round carryover effects are driven by migration phenology for Hirundo rustica (Barn Swallow) wintering in West Africa	1
Social behavior among nocturnally migrating birds revealed by automated moonwatching	1
Birds that breed exclusively on islands have smaller clutches	1
Uropygial gland size increases isometrically with body size in 35 North American bird species	1
Habitat connectivity, gene flow, and population genetic structure in a Neotropical understory insectivore, the Rufous-and-white Wren	1
Experimental warming of embryos accelerates metabolism of postnatal songbirds, influences growth, but has no effects on parental feeding and brooding rates	1
Gradual transitions in genetics and songs between coastal and inland populations of Setophaga townsendi	1
Female and male plumage brightness is positively correlated among populations of the dichromatic Variable Seedeater	1
Long-term winter food supplementation shows no significant impact on reproductive performance in Mountain Chickadees in the Sierra Nevada Mountains	1
Professional ethics survey identifies strengths and areas for improvement in the American Ornithological Society	1
Barometric geolocators can reveal unprecedented details about the migratory ecology of small birds	1
Wildfire smoke impacts the body condition and capture rates of birds in California	1
Variation in nuptial color in relation to sex, individual quality and mating success in the sex-role reversed Phalaropus fulicarius (Red Phalarope)	1
Telomere length links with physiological phenotype and breeding patterns in a long-lived seabird	1
Genomic and acoustic differences separate Lilian’s Meadowlark (Sturnella magna lilianae) from Eastern (S. magna) and Western (S. neglecta) meadowlarks	1
Extensive variation in feather ornaments of Whiskered Auklets in the Aleutian Islands reflects age, sex, condition, and geography	1
Nest-site selection and nest predation in a tropical passerine in relation to food, friends, and foes	1
Lesser Woodcreepers excavate nest cavities in trees	1
Sex, body size, and winter weather explain migration strategies in a partial migrant population of American Kestrels	1
Effects of age, breeding strategy, population density, and number of neighbors on territory size and shape in Passerculus sandwichensis (Savannah Sparrow)	1
DNA metabarcoding reveals rangewide variation in aquatic diet of a riparian avian insectivore, the Prothonotary Warbler	1
Considerations for fitting occupancy models to data from eBird and similar volunteer-collected data	1
The adaptive significance of off-lek sociality in birds: A synthetic review, with evidence for the reproductive benefits hypothesis in Long-wattled Umbrellabirds	1
Barn Swallows in East Asia show strong tolerance against nest mites	1
Distinctive mitogenomic lineages within populations of White-tailed Eagles	1
Elevational differences in migration phenology of Lazuli Buntings do not support selection-based hypotheses for protandry	1
Sulfur isotopic discrimination factors differ among avian tissues and diets: Insights from a case study in Gentoo Penguins	1
A brief history of English bird names and the American Ornithologists’ Union (now American Ornithological Society)	1
Satellite tracking of American Woodcock reveals a gradient of migration strategies	1
Neighbors matter: Vocal variation in Gentoo Penguins depends on the species composition of their colony	1
No apparent trade-off between the quality of nest-grown feathers and time spent in the nest in an aerial insectivore, the Tree Swallow	1
Thank You to the Reviewers of the 2021 Ornithology, Volume 138	1
Unmasking hidden genetic, vocal, and size variation in the Masked Flowerpiercer along the Andes supports two species separated by Northern Peruvian Low	1
Diversification and dispersal in the Americas revealed by new phylogenies of the wrens and allies (Passeriformes: Certhioidea)	1
Extended molt phenology models improve inferences about molt duration and timing	1
Painting the Bunting: Carotenoids and structural elements combine to produce the feather coloration of the male Painted Bunting	1
Food and social cues modulate reproductive development but not migratory behavior in a nomadic songbird, the Pine Siskin	1
Nest site vegetation structure influences nest predators and nesting success of understory birds in a dry evergreen forest in northeastern Thailand	1

No evidence that endohelminth parasites cause selection against hybrid orioles across the Baltimore–Bullock’s Oriole hybrid zone	1
Sociality and morphology differentiate niches of 13 sympatric Amazonian woodcreepers (Dendrocolaptinae)	1
Anthelmintic drugs modulate the acute phase immune response but not the microbiota in wild Song Sparrows	1
It is good to be average: Ecological correlates of breeding phenology in an Arctic seabird, Alle alle (Dovekie)	1
Walter J. Bock, 1933–2022	1
Climate change outpaces adaptive potential via hybridization in nesting female Saltmarsh and Nelson’s Sparrows	1
Banding data show hummingbirds have high rates of hybridization	1
The Great Rift Valley is a more pronounced biogeographic barrier than the Blue Nile Valley for six Ethiopian Highland passerines in the eastern Afromontane biodiversity hotspot	1