@article {500,
	title = {Egg size and laying order of Snowy Egrets, Great Egrets, and Black-crowned Night-Herons},
	journal = {Condor},
	volume = {92},
	year = {1990},
	note = {Ardeidae},
	pages = {772-775},
	keywords = {yesnest},
	author = {Custer, T. W. and P. C. Frederick}
}
