Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1975
Eastern Bluebird
Sialia sialis
May 11 Bonny Dam, Yuma Co., Colo.: 1 ♂ along Republican River bottom east of Hale. Found here earlier in the day by Harold Holt and others who said it was associating with a female and nesting in a hole in a stump (we saw the hole but no female); the male spent most of his time around that tree