[cobirds] BIRD BOMBS - request for Colorado ID Challenge ideas

Hi CoBirders,

The November episode of BIRD BOMBS will focus on some key ID challenges birders encounter in Colorado. What are perennial challenges here in Colorado? Examples include Common Raven  vs. Chihuahuan Raven, Lesser Scaup vs. and Greater Scaup, Horned Grebe vs. Eared Grebe, Cooper's Hawk vs. Sharp-shinned Hawk, female hummers, peeps, female teal, immature Little Blue Heron vs. Snowy Egret,  and even Cackling vs. Canada. 

I welcome replies to me off list with ID comparisons that you would be interested in learning about, or those you think are classic field challenges for CO birders. I'd like to have your ideas.

Thank you,

David Suddjian

Littleton, CO

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