Birding at Cottonwood Wash: What You'll See Each Week
In November, the birds most often reported at Cottonwood Wash are American Coot (90%), Mallard (90%), and White-crowned Sparrow (69%). It is busiest in fall, when 79 species turn up on at least 1 in 20 checklists, and species counts peak in mid August (94 species). 187 species have been reported here across 814 complete checklists from 108 birders.
Species by week
Number of species reported on at least 5% of complete checklists, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.
Canada Goose51% of checklists here vs 5.1% statewide: 10.1×
Snow Goose14% of checklists here vs 1.3% statewide: 10.0×
Cliff Swallow30% of checklists here vs 3.5% statewide: 8.7×
Frequency is the share of complete checklists at this location that listed the bird, 2016–2025. Busy places report more of everything, and the weekly chart counts species on at least 5% of checklists so a few stray reports do not inflate it. How to read it.