Courtney L. Brennan

TL;DR: This paper presents a meta-anatomical analysis of the decline in Honey Buzzard populations in the United States over the past 50 years and some of the mechanisms leading to decline can be identified.

TL;DR: Analysis of tissue samples, morphometric and plumage data showed a combination of Cerulean Warbler and Northern Parula plumage characteristics, the first mensural and molecular evidence to confirm hybridization of these closely related species.

TL;DR: In this article, the authors recorded the natural song of male Veeries (Catharus fuscescens) on breeding territories to examine variation in song structure, repertoire size, and patterns of song delivery.

TL;DR: The authors confirmed two independent accounts of previously undocumented hybridization between Magnolia Warbler (Setophaga magnolia) and American Redstart (S. ruticilla) through morphological and genetic analyses.

TL;DR: In this article , the authors modelled the demographic history of 19 co-distributed boreal-breeding North American bird species from full mitochondrial gene sets and species-specific molecular rates and used these demographic reconstructions to test how species with different migratory strategies were affected by glacial cycles.