GPS tracking and population genomics suggest itinerant breeding across drastically different habitats in the Phainopepla
Drivers of variation in migration behavior for a linked population of long-distance migratory passerine
Lower breeding success in a new range: No evidence for the enemy release hypothesis in South American Barn Swallows
Biotic interactions are the dominant drivers of phylogenetic and functional structure in bird communities along a tropical elevational gradient
Multiple intrinsic markers identify carry-over effects from wintering to breeding sites for three Nearctic–Neotropical migrant swallows
Extraordinary variation in a simple song: No geographical patterns in initial phrase variation of the Yellowhammer, a passerine with pronounced dialects
Shallow genetic divergence and distinct phenotypic differences between two Andean hummingbirds: Speciation with gene flow?
Behavioral and morphological evidence of an Allen's × Rufous hummingbird (Selasphorus sasin × S. rufus) hybrid zone in southern Oregon and northern California