1. Distribution of the amount of corticosterone in five primary feathers of bald eagles sampled in 21 mm segments from distal to proximal position along the shaft and expressed as (A) concentration (pg mg–1) and by (B) a linear measurement (pg mm–1).
Distribution of the amount of corticosterone in five primary feathers of bald eagles sampled in 21 mm segments from distal to proximal position along the shaft and expressed as (A) concentration (pg mg–1) and by (B) a linear measurement (pg mm–1). Symbols represent individual feathers, and lines show significant correlations (see text).
Gary R. Bortolotti et al. J Exp Biol 2009;212:
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