Looking for a puzzler? How about hybrid Mallards. I was watching about 250 Mallards in a Geauga County community pond today, and I have at least 2 Mallard hybrids that I can't figure out the cross. Pictures are posted on my eBird checklist and I would welcome any thoughts. My suggestions are posted with the pictures at http://ebird.org/ebird/view/checklist/S41793163. I also had what appears to be two (2) Mallard x American Black Duck crosses (females). They look like female Mallards except for the dark green bill. Can hen Mallards have a dark green bill?? I did some searching but could not find an answer. Pictures are on the same checklist. Looking forward to your replies, Matt Valencic "It is in giving that we receive." ______________________________________________________________________ Ohio-birds mailing list, a service of the Ohio Ornithological Society. Please consider joining our Society, at www.ohiobirds.org/site/membership.php. Our thanks to Miami University for hosting this mailing list. You can join or leave the list, or change your options, at: listserv.miamioh.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]