Evens, J. G., and R. W. Stallcup. 1986. The 1986 breeding season at Olema and Livermore marshes, Tomales Bay, California: a monitoring project by Audubon Canyon Ranch. ACR Tech. Rpt. 85-1-2. Audubon Canyon Ranch, P.O. Box 808, Marshall, CA 94940.

Evens, J. G., and R. W. Stallcup. 1985. The 1984 monitoring season at Olema Marsh, Marin County, CA. ACR Tech. Rpt. 85-1-1. Audubon Canyon Ranch, P.O. Box 808, Marshall, CA 94940.

Pratt, H. M., and D. W. Winkler. 1985. Clutch size, timing of laying, and reproductive success in a colony of Great Blue Herons and Great Egrets. Auk 102: 49-63.

Petersen, J. D. 1985. Foraging behavior and functional morphology of the bark-foraging birds of the Bouverie Audubon Preserve. M.S. thesis. Santa Rosa, CA: Sonoma State University.

Pratt, H. M. 1983. Marin County California heron colonies: 1967-1981. Western Birds 14: 169-184.

Pratt, H. M. 1980. Directions and timing of Great Blue Heron foraging flights from a California colony: implications for social facilitation of food finding. Wilson Bulletin 92: 489-496.

Pratt, H. M. 1977. Great Blue Herons interrupt nest-guarding to drink. Condor 79: 501-502.

Pratt, H. M. 1974. Breeding of Great Blue Herons and Great Egrets at Audubon Canyon Ranch, California, 1972-1973. Western Birds 5: 127-136.

Faber, R. A., R. W. Risebrough, and H. M. Pratt. 1972. Organochlorines and mercury in Common Egrets and Great Blue Herons. Environmental Pollution 3: 111-122.

Pratt, H. M. 1973. Breeding attempts by juvenile Great Blue Herons. Auk 90: 897-899.

Pratt, H. M. 1972. Nesting success of Common Egrets and Great Blue Herons in the San Francisco Bay region. Condor 74: 447-453.

Pratt, H. M. 1972. Nesting success of Great Blue Herons and Common Egrets at Audubon Canyon Ranch in 1971. American Birds 26: 699-702.

Pratt, H. M. 1970. Breeding biology of Great Blue Herons and Common Egrets in Central California. Condor 72: 407-416.