Well, taking that idea a step further, I have seen a few male Northern Shovelers with limited "white-face-crescents" (they were barely present in the birds I can recall). Birds of North America states (for Alternate I, male NOSH)
Head and neck black with iridescent green medially. Some birds show a partial white crescent on face similar in shape and location to that found on adult male Blue-winged Teal. Here are a few examples of birds displaying varying amounts of this https://ebird.org/view/checklist/S53783523 https://ebird.org/view/checklist/S50151354 https://ebird.org/view/checklist/S43315377 https://ebird.org/view/checklist/S15844033 https://ebird.org/view/checklist/S26835905 Maybe there is a white-face-crescent gene hiding in Northern Shoveler. Sean Walters Fort Collins, CO -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CAErW0v72Bj2TtLEdDVbV6g3vHY7DHn82gw-zz080HKYqsq6Nwg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
