American Bittern: Birds of North America species account

J.P. Gibbs, S. Melvin, and F.A. Reid.

Least Bittern: Birds of North America species account

J.P. Gibbs, F.A. Reid, and S.M. Melvin.

Great Blue Heron: Birds of North America species account

Robert W. Butler.

Great Egret: Birds of North America species account

Donald A. McCrimmon, Jr., John C. Ogden, and G. Thomas Bancroft.

Snowy Egret: Birds of North America species account

Katharine C. Parsons and Terry L. Master.

Little Blue Heron: Birds of North America species account

James A. Rodgers, Jr. and Henry T. Smith.

Tricolored Heron: Birds of North America species account

Peter C. Frederick.

Reddish Egret: Birds of North America species account

P.E. Lowther and R.T. Paul.

Cattle Egret: Birds of North America species account

Raymond C. Telfair, II.

Green Heron: Birds of North America species account

W.E. Davis, Jr. & J.A. Kushlan.

Black-crowned Night-Heron: Birds of North America species account

William E. Davis, Jr.

Yellow-crowned Night-Heron: Birds of North America species account

Bryan D. Watts.