Encyclopedia of Life: http://eol.org/pages/915353/overview
Brief introduction: The Chimney Swift (Chaetura pelagica (Linnaeus, 1758)) is a bird belonging to the swift family Apodidae. Like their namesake, swifts are among the fastest flying birds. The Chimney swift is often described as a sociable species, seldom seen alone.
Zhang et al., Comparative Genomics Reveals Insights into Avian Genome Evolution and Adaptation. Science, (2014).
Jarvis et al., Whole Genome Analyses Resolve Early Branches in the Tree of Life of Modern Birds. Science, (2014).