#teamphotoblog Checking the fat content of a brown thrasher [2011]Springbrook Nature Center, Fridley, MN ©Ericka Bailie-Byrne For migratory birds, the higher the fat the closer they are to migrating south.

#teamphotoblog

Checking the fat content of a brown thrasher [2011]
Springbrook Nature Center, Fridley, MN

©Ericka Bailie-Byrne

For migratory birds, the higher the fat the closer they are to migrating south.

  1. elbfoto posted this