TY  - RPRT
TI  - Microanatomy of passerine hard-cornified tissues: Beak and claw structure of the black-capped chickadee (Poecile atricapillus)
AU  - Caroline R. Van Hemert
AU  - Colleen M. Handel
AU  - John E. Blake
AU  - Rhonda Swor
AU  - Todd M. O'Hara
PY  - 2011
DO  - 10.1002/jmor.11023
UR  - https://pubs.usgs.gov/publication/70137423
ID  - 70137423
ER  -