(Song Sparrow) bill size is primarily shaped by thermoregulation on the California Channel IslandsDOI: info:10.1093/ornithology/ukae028v. 141No. 4
Gamboa, Maybellene P., Ghalambor, Cameron K., Sillett, T. S., Funk, W. C., Furbush, Ross A., Husak, Jerry F., and Danner, Raymond M. 2024. "Melospiza melodia (Song Sparrow) bill size is primarily shaped by thermoregulation on the California Channel Islands." Ornithology, 141, (4). https://doi.org/10.1093/ornithology/ukae028.