Joern Lehmhus
Well-known member
Hi all,
while searching some photos of yellowbilled duck x mallard hybrids I found the following photos. Can anybody , especially South Africans who have to deal with the problem of hybridization YBduck x introduced Mallard, give information if orange legs in Yellowbilled duck are a sign that the specimen in question has a mallard ancestor?
YELLOWBILLED DUCK (Anas undulata)
Hybrids with mallard
1.same photo on different links
http://www.exzooberance.com/virtual zoo/they fly/duck/Yellowbilled Duck 268012.jpg
http://www.fotosearch.com/CPH223/268012/
2.another hybrid:
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=490912
3.and a third hybrid:
http://www.treknature.com/gallery/Africa/South_Africa/photo23356.htm
pure:
http://www.birdforum.net/bird_view.php?bid=9686
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=490945
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=306045
Also of interest:
PACIFIC BLACK DUCK (Anas superciliosa)
Hybrid with mallard:
http://www.aviceda.org/abid/search.php?action=searchresult&p=18&keyword=duck
pure Birds:
http://www.aviceda.org/abid/search.php?action=searchresult&p=40&keyword=duck
http://www.aviceda.org/abid/search.php?action=searchresult&p=76&keyword=duck
Among other ID features orange legs in PBD also seem to be a feature of hybrids...
or can both pure Pacific Black Duck and Yellow Billed Duck in rare cases show orange legs?
while searching some photos of yellowbilled duck x mallard hybrids I found the following photos. Can anybody , especially South Africans who have to deal with the problem of hybridization YBduck x introduced Mallard, give information if orange legs in Yellowbilled duck are a sign that the specimen in question has a mallard ancestor?
YELLOWBILLED DUCK (Anas undulata)
Hybrids with mallard
1.same photo on different links
http://www.exzooberance.com/virtual zoo/they fly/duck/Yellowbilled Duck 268012.jpg
http://www.fotosearch.com/CPH223/268012/
2.another hybrid:
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=490912
3.and a third hybrid:
http://www.treknature.com/gallery/Africa/South_Africa/photo23356.htm
pure:
http://www.birdforum.net/bird_view.php?bid=9686
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=490945
http://www.photographersdirect.com/buyers/pe_buyer.cgi?imageid=306045
Also of interest:
PACIFIC BLACK DUCK (Anas superciliosa)
Hybrid with mallard:
http://www.aviceda.org/abid/search.php?action=searchresult&p=18&keyword=duck
pure Birds:
http://www.aviceda.org/abid/search.php?action=searchresult&p=40&keyword=duck
http://www.aviceda.org/abid/search.php?action=searchresult&p=76&keyword=duck
Among other ID features orange legs in PBD also seem to be a feature of hybrids...
or can both pure Pacific Black Duck and Yellow Billed Duck in rare cases show orange legs?