Modern attempts to produce biogeographic maps focus on the distribution of species, and
the maps are typically drawn without phylogenetic considerations. Here, we generate a …

Molt is an important avian life history event in which feathers are shed and replaced. The
timing, duration, seasonality, extent and pattern of molt follows certain strategies and this …

The complex geography of the Neotropical montane system is a natural laboratory for
population divergence. Understanding which geographic barriers (lowland barriers, arid …

Abstract The New World sparrows (Emberizidae) are among the best known of songbird
groups and have long-been recognized as one of the prominent components of the New …

R. TERRY CHESSER, 1, 12, 13 RICHARD C. BANKS, 1 F. KEITH BARKER, 2 CARLA
CICERO, 3 JON L. DUNN, 4 ANDREW W. KRATTER, 5 IRBY J. LOVETTE, 6 PAMELA C …

Selection of a breeding site is critical for many animals, especially for birds whose offspring
are stationary during development. Thus, birds are often assumed to prefer concealed nest …

(American Ornithologists' Union [AOU] 1998). It summarizes decisions made between April
15, 2017, and April 15, 2018, by the AOS's Committee on Classification and Nomenclature …

Closely related species of birds often differ markedly in their color patterns. Here we
examine the influence of breeding-range overlap (breeding sympatry) on the evolution of …

The emberizid genera Aimophila and Pipilo represent longstanding taxonomic conundrums.
Each is comprised of sub‐clades whose members appear to share diagnostic morphological …

Mating systems can vary among species and populations and thus influence evolutionary
trajectories, ecological traits, and population demography. The siring of offspring by an …