| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| American Bittern | X | X | X | X | ||||||||
| Least Bittern | X | X | ||||||||||
| Great Blue Heron | X | X | X | X | X | X | X | X | X | X | X | X |
| Great Egret | X | X | X | X | X | X | X | X | X | X | X | X |
| Snowy Egret | X | X | X | X | X | X | X | X | X | X | X | X |
| Little Blue Heron | X | X | X | X | X | |||||||
| Tricolored Heron | X | X | X | |||||||||
| Reddish Egret | X | X | ||||||||||
| Cattle Egret | X | X | X | X | X | |||||||
| Green Heron | X | X | X | X | X | X | X | X | X | X | ||
| Black-crowned Night-Heron | X | X | X | X | X | X | X | X | X | X | X | X |
| Yellow-crowned Night-Heron | X | |||||||||||