images-conservation
- Tufted titmouse
- Green Jay
- male Painted bunting
- Greater Roadrunner
- American Kestrel
- American Kestrel
- Tri-colored Heron
- Brown Pelican
- Roseate Spoonbill
- Black Skimmer
- Great Blue Heron
- Blackbirds
- Redwinged Blackbird
- English Sparrow
- Pigeon
- Starling
- Grackle
- Cowbird
- Eurasian Collared Dove
- Magpie
- Bats
- Watching a bat emergence
- Bats emerging from the Congress Avenue Bridge in Austin, TX
- Photo courtesy of the Texas River School
- Bats on roof of cave
- Closeup shot of bat
- Bats in flight overhead
- Flock of geese
- Shore birds
- birds
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- Mallard
- Brown Pelican
- Great Blue Heron
- Roseate Spoonbill
- Roseate Spoonbill
- Roseate Spoonbill
- Snow Geese
- Sandhill Cranes
- Whooping Cranes
- Juvenile and Adult Whooping Cranes
- Whooping Cranes
- Whooping Cranes
- Sandhill Cranes
- Sandhill Crane heads
- Sandhill Crane Heads
- Whooping Crane head
- Snow Geese
- White Pelican
- White Pelicans
- Whooping Crane in flight
- 2 Whooping Cranes in flight
- Snowy Egret
- Great Egret
- Bald Eagle
- Eagle nest in fog
- Bald Eagle in nest with hatchling calling
- Bald Eagle in huge nest
- Bald eagle with juvenile eagles in nest
- Turkey vulture
- Bald Eagle flying
- Hydrilla
- Sign at lake warning of Giant Salvinia
- Water Hyacinth
- Zebra mussels
- Giant Salvinia
- Zebra mussels
- Giant Salvinia
- Giant Salvinia
- Giant Salvinia covering pond
- Giant Salvinia clinging to a boat trailer
- Zebra mussels on boat motor
- Zebra mussels on boat motor
- Closeup of Pronghorn
- Pronghorn pair near Marfa
- Pronghorn
- Pronghorn quarter away
- White-tailed deer
- Mule deer
- Shoveler
- American Kestrel