TY - RPRT TI - Macroscopic, histologic, and ultrastructural lesions associated with avian keratin disorder in Black-capped Chickadees (Poecile atricapillus) AU - Caroline R. Van Hemert AU - A. G. ArmiƩn AU - J.E. Blake AU - Colleen M. Handel AU - T. M. O'Hara PY - 2013 DO - 10.1177/0300985812469637 UR - https://pubs.usgs.gov/publication/70044690 ID - 70044690 ER -