Apps like Audubon Bird Guide

Here are some great alternatives to Audubon Bird Guide by National Audubon Society :
Sibley Birds 2nd Edition
Sibley Birds 2nd Edition
★4.1
Birds of Europe Field Guide
Birds of Europe Field Guide
★4.0
American Birds Sounds Pro
American Birds Sounds Pro
★4.1
Bird Finder - All Birds
Bird Finder - All Birds
★4.0
Collins Bird Guide
Collins Bird Guide
★4.2
Morcombe's Birds of Australia
Morcombe's Birds of Australia
★4.0
Bird Sound Identifier Bird ID
Bird Sound Identifier Bird ID
★4.3
Sibley Guide to Hummingbirds
Sibley Guide to Hummingbirds
★4.9
Smart Bird ID
Smart Bird ID
★4.3
Birda: Birding Made Better
Birda: Birding Made Better
★3.6
GoBird - Guide to Nearby Birds
GoBird - Guide to Nearby Birds
★4.1
Picture Bird - Bird Identifier
Picture Bird - Bird Identifier
★4.6
OrnitO
OrnitO
★4.6
Bird Buddy: ID & Collect Birds
Bird Buddy: ID & Collect Birds
★4.8
eGuide to Birds of East Africa
eGuide to Birds of East Africa
★4.3
World of Wings
World of Wings
★4.8