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 cobirds+unsubscr...@googlegroups.com. To post to this group, send email to cobirds@googlegroups.com. 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.
