Merlin Bird ID by Cornell Lab

Field Guide with Instant ID

Birda - Birding Made Better

eBird & iNaturalist imports

Seek by iNaturalist

Identify plants & animals

AllTrails: Hike, Run & Walk

GPS Hiking, Cycling Trail Maps

Audubon Bird Guide

Identify over 800 bird species

Birdbuddy: ID & Collect Birds

Identify by photo & sound