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ZEISS. Discover the fascinating world of birds, and win a birding trip to Columbia

The RARE Hybrid Pochard x Tufted Duck (1 Viewer)

Nutcracker

Stop Brexit!
Actually, this hybrid is getting depressingly common - the problem being the heavily male-skewed sex ratio in the declining Pochard population. The excess males can't find the right mates and end up going for female Tufties.
 

Ornitomania

Well-known member
Actually, this hybrid is getting depressingly common - the problem being the heavily male-skewed sex ratio in the declining Pochard population. The excess males can't find the right mates and end up going for female Tufties.

True, but here in the lakes of Northern Italy you can still see a few all in all
 

GWB77

Grafham Water Birder
Is this a Tufted x Pochard hybrid? I don't see much Tufted Duck influence.

Why is it not a Ferruginous Duck x Pochard hybrid?
 

stevethehydra

Well-known member
Not only is it a clear Ferruginous x Common Pochard hybrid, it's labelled as such!

Interesting re sex ratios causing an increase in hybridisation - in my experience, both Common Pochards and Tufted Ducks seem to have much higher numbers of males than females at most urban sites. Are there actually more males hatched for some genetic reason, or are females just more shy/elusive?
 

Nutcracker

Stop Brexit!
Interesting re sex ratios causing an increase in hybridisation - in my experience, both Common Pochards and Tufted Ducks seem to have much higher numbers of males than females at most urban sites. Are there actually more males hatched for some genetic reason, or are females just more shy/elusive?

Probably due to increased mortality in females; at a guess, predation by pet dogs/cats in locations with inadequate cover for nesting females. There's a recent paper on the changing sex ratio in Pochards which will have better info, I'll see if I can dig out a link to it.
 
ZEISS. Discover the fascinating world of birds, and win a birding trip to Columbia
ZEISS. Discover the fascinating world of birds, and win a birding trip to Colombia
ZEISS. Discover the fascinating world of birds, and win a birding trip to Colombia
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