Bobolink: Tree Sparrow_4172
Bobolink: Tree Sparrow in Flight_4182
Bobolink: Tree Sparrow_4183
Bobolink: Tree Sparrows_4164
Bobolink: Tree Sparrow, Feb, 2, 2011_4207
Bobolink: Tree Sparrows and Slate-coloured Juncos, Feb, 2, 2011_4209
Bobolink: Tree Sparrow_4274