Phaeothlypis fulvicauda (Buff-Rumped Warbler)
- Sound recordings and scientific classification of this species.
- http://animaldiversity.ummz.umich.edu/site/accounts/sounds/Phaeothlypis_fulvicauda.html

Basileuterus rufifrons (Rufous-capped Warbler)
- Physical traits, food habits, reproduction, and habitat of this songbird.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Basileuterus_rufifrons.html