-
Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.
Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Falcated duck hybrid? Uttarakhand, India 27/10/2020 (1 Viewer)
- Thread starter kabirswaraich
- Start date
Nutcracker
Stop Brexit!
Ditto to some Gadwall in there; whether the rest is Falcated or not, wouldn't like to say.
Joern Lehmhus
Well-known member
Not a first or second generation hybrid, and also not a backcross of a hybrid to gadwall in my opinion. To me a Gadwall...
Gadwall occasionally shows a twotoned head pattern. The short pale tertials of your bird indicate gadwall
Hybrids of Gadwall and falcated duck are fertile and can breed back with either species; but first generation crosses normally look like these birds:
https://www.researchgate.net/profil...609749770969088@1522387082546/figure-fig1.png
https://waarneming.nl/fotonew/8/5868.jpg
https://lh3.googleusercontent.com/p...iUAMCKzK6VJtFeZFiy4o6DxBcYaQRZAjKiyhHJ5jVOlGg
https://www.flickr.com/photos/23281683@N04/2227537299/
http://www.harrisbirds.com/Falcated Duck Hybrid.htm
https://www.flickr.com/photos/23281683@N04/2227537303/in/photostream/
there are birds that look more like your bird but they may not be a first generation cross; but a backcross of a hybrid to gadwall
https://www.youtube.com/watch?v=mqS7NVt_imU
Additionally there is evidence of ancestral hybridisation between falcated duck and gadwall:
https://pubmed.ncbi.nlm.nih.gov/17683440/
therefore the two toned head pattern in a few gadwalls may be the result of anceint hybridisation thousends of generations ago....
This in contrast to the hybrids above are Gadwalls with a two toned head pattern:
http://www.tierdoku.com/images/thumb/800px-Schnatterente-1043.jpg
https://www.tn.gov/content/tn/twra/...mn_parsys0/tn_image.img.jpg/1581278062629.jpg
Gadwall occasionally shows a twotoned head pattern. The short pale tertials of your bird indicate gadwall
Hybrids of Gadwall and falcated duck are fertile and can breed back with either species; but first generation crosses normally look like these birds:
https://www.researchgate.net/profil...609749770969088@1522387082546/figure-fig1.png
https://waarneming.nl/fotonew/8/5868.jpg
https://lh3.googleusercontent.com/p...iUAMCKzK6VJtFeZFiy4o6DxBcYaQRZAjKiyhHJ5jVOlGg
https://www.flickr.com/photos/23281683@N04/2227537299/
http://www.harrisbirds.com/Falcated Duck Hybrid.htm
https://www.flickr.com/photos/23281683@N04/2227537303/in/photostream/
there are birds that look more like your bird but they may not be a first generation cross; but a backcross of a hybrid to gadwall
https://www.youtube.com/watch?v=mqS7NVt_imU
Additionally there is evidence of ancestral hybridisation between falcated duck and gadwall:
https://pubmed.ncbi.nlm.nih.gov/17683440/
therefore the two toned head pattern in a few gadwalls may be the result of anceint hybridisation thousends of generations ago....
This in contrast to the hybrids above are Gadwalls with a two toned head pattern:
http://www.tierdoku.com/images/thumb/800px-Schnatterente-1043.jpg
https://www.tn.gov/content/tn/twra/...mn_parsys0/tn_image.img.jpg/1581278062629.jpg
