Date: 12/30/18 4:13 am From: Terry Bronson <tbronsonbirds...> Subject: Re: F.O.F. Marmet Locks: Mandarin Duck
Rich, Mike, and everyone,
Mandarin Ducks are not native to the U.S. and are normally only found in zoos and waterfowl collections. Occasionally, however, 1 or 2 may escape and become feral. Because these are not part of the native avifauna of the U.S. they are not accepted as valid wild birds by eBird, except in Florida, California, and a few other places where there are long-established wild populations. The American Birding Association very conservative and stringent guidelines on when such exotic birds are considered established, at http://listing.aba.org/criteria-determining-establishment-exotics/, may be helpful. The West Virginia birds, obviously, do not come close to meeting those guidelines.
Mandarin Ducks do indeed hybridize with Wood Ducks, and eBird does now include that option for reporting, so Rich, you might want to go back and change the dabbling duck sp. on your checklist https://ebird.org/view/checklist/S25259218 accordingly. Apparently, they may also hybridize with other species as well: Rich's checklist https://ebird.org/view/checklist/S29851605 shows a female with a huge bill and a head profile not characteristic of either Wood Ducks or Mandarin Ducks. Although those checklists do not list Mallards--wild or the white domestic types--I suspect that species may be part of the bird's ancestry since that would normally be the only other breeding species present in the area in summers.
On Sun, Dec 30, 2018 at 12:01 AM Richard Gregg <greggra...> wrote: