| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sage Sparrow | r | |||||||||||
| Savannah Sparrow | r | r | r | r | r | r | u | fc | u | |||
| Grasshopper Sparrow | r | |||||||||||
| Fox Sparrow | u | r | r | u | ||||||||
| Song Sparrow | fc | c | c | fc | c | c | c | fc | fc | fc | u | u |
| Lincoln's Sparrow | u | fc | fc | fc | u | u | u | u | ||||
| White-throated Sparrow | c | c | c | fc | u | u | c | c | ||||
| Golden-crowned Sparrow | c | c | c | c | r | u | c | c | c | |||
| White-crowned Sparrow | c | c | c | fc | r | fc | c | c | c | |||
| Dark-eyed Junco | c | c | c | fc | r | r | r | r | r | fc | c | c |
| Red-winged Blackbird | c | c | c | c | c | c | c | c | c | c | c | c |
| Tricolored Blackbird | r | u | u | u | r | |||||||
| Western Meadowlark | c | c | c | c | c | c | c | u | fc | c | fc | fc |
| Yellow-headed Blackbird | r | |||||||||||
| Brewer's Blackbird | c | c | c | c | c | c | c | c | c | c | c | c |
| Brown-headed Cowbird | u | u | r | u | fc | fc | fc | u | r | r | ||
| Hooded Oriole | r | |||||||||||
| Bullock's Oriole | u | c | c | c | c | u | r | |||||
| Purple Finch | u | fc | fc | fc | r | r | r | r | r | |||
| Cassin's Finch | r | r | ||||||||||
| House Finch | c | c | c | c | c | c | c | c | c | c | c | c |
| Pine Siskin | fc | fc | fc | fc | u | fc | fc | |||||
| Lesser Goldfinch | c | c | c | c | c | c | c | c | c | c | c | c |
| American Goldfinch | fc | c | fc | fc | c | c | c | c | c | c | c | c |
| Lawrence's Goldfinch | r | r | r | r | r | r | ||||||
| Evening Grosbeak | r | |||||||||||
| House Sparrow | fc | fc | c | c | c | c | c | fc | fc | fc | fc | fc |
The following non-native species have on occasion been seen on the loose in Potter Valley but have never become established as wild birds: Emu, Egyptian Goose, Common Peafowl, Golden Pheasant, Ringed Turtle-Dove, Red-masked Parakeet, Cockatiel, Budgerigar.