Apps like NestWatch by the Cornell Lab

Here are some great alternatives to NestWatch by the Cornell Lab by Cornell Lab of Ornithology :
Nest
Nest
★3.9
Family Nest
Family Nest
★4.4
Pocket Penguins
Pocket Penguins
★4.2
Parrot Bird Simulator Game
Parrot Bird Simulator Game
★3.3
Audubon Bird Guide
Audubon Bird Guide
★4.3
My Birds - Aviary Manager
My Birds - Aviary Manager
★4.3
Sibley Birds 2nd Edition
Sibley Birds 2nd Edition
★4.1
Bird Identifier - Birdby
Bird Identifier - Birdby
★3.8
RareBirder
RareBirder
★4.6
Raptor ID
Raptor ID
★3.6
Raptor ID
Raptor ID
★4.3
Birdbuddy: ID & Collect Birds
Birdbuddy: ID & Collect Birds
★4.7
American Birds Sounds Pro
American Birds Sounds Pro
★4.1
Find the Birds
Find the Birds
★3.6
BirdTrack
BirdTrack
★3.3
Flockstar
Flockstar
★4.0