TY  - RPRT
TI  - Stable isotopes identify dietary changes associated with beak deformities in Black-Capped Chickadees ( Poecile atricapillus )
AU  - Caroline R. Van Hemert
AU  - Colleen M. Handel
AU  - Diane M. O’Brien
PY  - 2012
DO  - 10.1525/auk.2012.12037
UR  - https://pubs.usgs.gov/publication/70041078
ID  - 70041078
ER  -