No interactions present.
Or is it a female Mallard ?
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
On reflection and having checked some literature it doesn't look quite right for Yellow-billed pintail (though it's a shame the tip of the tail is missing in the photo). I'd agree that it's either a Mallard or a hybrid.
Just found a better picture that shows the tip of the tail and the speculum.
It looks as if it's only got one full wing so may well be a collection bird? The head shape and pattern doesn't seem quite right for Mallard to me, and it does look like there's a hint of a pointed tail. The speculum is also wrong for a classic Mallard but Mallards can of course be very variable and unfortunately the other alternative (Yellow-billed Pintail) should also show white edges to the speculum.
What size was it? - this may help with the ID.
Are there any South American bird experts on here who can confirm that it's not a YB Pintail. If it's not that then maybe the best we can go for is Anas sp?
Sorry about the double posting!!
I believe Y-b Pintail is the best ID for this bird.
None of the features visible are wrong for this species (the yellow on the bill might not seem quite extensive enough, but it can clearly be seen to extend forward along the sides of the bill as expected).
There is of course a possibility that this might be a hybrid - but if it is I believe that the genetics that have been expressed in it's appearance are (at least mainly) those of Y-b Pintail.
Lat/Lng: 56.1308, -3.9644
OS grid ref: NS780948