Gray catbirds can be found in the Big Thicket year-round, but populations in the North often migrate south for the winter, so they may be more common during the winter months.
Crowell, K. L., & Rothstein, S. I. (1981). Clutch sizes and breeding strategies among Bermudan and North American passerines. Ibis, 123(1), 42-50.
Kaufman, K. (2001). Lives of North American Birds. Houghton Mifflin Harcourt.
Payne, R. B. (1977). The ecology of brood parasitism in birds. Annual review of ecology and systematics, 8(1), 1-28.
Last updated: April 21, 2021