Bob Mayer: Tree Swallow males checking nest box
Bob Mayer: Eastern Screech-owl red phase
Bob Mayer: Song Sparrow nest
Bob Mayer: Eastern Screech-Owlet, gray phase
Bob Mayer: Red-winged Blackbird fledgling
Bob Mayer: Young Wood Duck
Bob Mayer: Wood Duck young
Bob Mayer: Wood Duck juveniles
Bob Mayer: Red-winged Blackbird female
Bob Mayer: Tree Swallow nest failure
Bob Mayer: Tree Swallow fledgling