- Horse breeds -- Identification
- Soldiers -- United States -- Identification -- Handbooks, manuals, etc
- Dead -- Identification -- Handbooks, manuals, etc
- Birds -- Florida -- Identification
- Tracking and trailing -- Middle Atlantic States -- Identification
- Seeds -- Identification
- Mushrooms -- Southern States -- Identification
- Dead -- Identification
- Shells -- North America -- Identification
- Birds -- Russia (Federation) -- Russian Far East -- Identification
- Fishes -- Virginia -- Identification
- War casualties -- Bosnia and Hercegovina -- Identification
- Moths -- Northeastern States -- Identification
- Snakes -- East (U.S.) -- Identification
- Moths -- United States -- Identification
- Sharks -- Florida -- Identification
- Birds -- Middle Atlantic States -- Identification
- Animal tracks -- Identification
- Waterfowl -- Canada, Eastern -- Identification
- Waterfowl -- East (U.S.) -- Identification
- Monsters -- Identification
- Plants, Edible -- North America -- Identification
- Sharks -- Bahamas -- Identification
- Weeds -- West (U.S.) -- Identification
- Birds -- East Asia -- Identification
- Birds -- Asia, Central -- Identification
- Birds -- Haiti -- Identification
- Fingerprints -- Identification -- Juvenile literature
- Wood -- Identification -- Handbooks, manuals, etc
- Shrubs -- East (U.S.) -- Identification
- Birthparents -- Ontario -- Hamilton -- Identification
- Birthparents -- United States -- Identification
- Poisonous snakes -- United States -- Identification
- Water birds -- Atlantic Coast (U.S.) -- Identification
- Mushrooms -- Europe -- Identification
- Edible mushrooms -- Identification -- Pictorial works
- Birdsongs -- West (U.S.) -- Identification
- Water birds -- Identification -- Juvenile literature
- Animals -- Blue Ridge Parkway (N.C. and Va.) -- Identification
- Soldiers -- Identification
- Plants, Useful -- North America -- Identification
- Birds -- India -- Identification
- Invasive plants -- Canada -- Identification
- Human body -- Identification -- Fiction
- Birds of prey -- Identification
- Amphibians -- United States -- Identification
- Bears -- North America -- Identification
- Butterflies -- Identification -- Juvenile literature
- Plants -- Yellowstone National Park -- Identification
- Trees -- Canada, Western -- Identification