TY - RPRT TI - Clutch size declines with elevation in tropical birds AU - A.J. Boyce AU - Benjamin G. Freeman AU - Adam E. Mitchell AU - Thomas E. Martin PY - 2015 DO - 10.1642/auk-14-150.1 UR - https://pubs.usgs.gov/publication/70168406 ID - 70168406 ER -