Hi Suyono
That is true for Passeriformes but ducks are members of Anseriformes.
Arctic region ducks and related waterfowl actually do fly south for
the winter, in search of bodies of water that do not freeze over.
They generally remain well within the northern hemisphere (ie in
temperate regions) although a few species do winter in tropical areas.
Mark
That is true for Passeriformes but ducks are members of Anseriformes.
Arctic region ducks and related waterfowl actually do fly south for
the winter, in search of bodies of water that do not freeze over.
They generally remain well within the northern hemisphere (ie in
temperate regions) although a few species do winter in tropical areas.
Mark
--- In [email protected], Suyono <suyonohy@...> wrote:
>
> Hi Mark,
>
> Recent research suggests that long-distance passerine
> migrants are of South American and African, rather
> than northern hemisphere, evolutionary origins. They
> are effectively southern species coming north to breed
> rather than northern species going south to winter.
>
> Suyono
>
> PS:
> Another cause of birds occurring outside their normal
> ranges is the "spring overshoot" in which birds
> returning to their breeding areas overshoot and end up
> further north than intended.
>
> "Mark" wrote:
> >
> > Condiments of the seasoning, everyone.
> >
> > Has anyone heard from Donald lately?
> >
> > He said he would be away for a week from the end of
> > last month. I'm sure he would have had a mountain of
> > email to plough through when he got back but I
> > expected to have had a response or announcement from
> > him by now. Maybe he flew south for the winter.
> >
> > Mark (looking forward to Xmas because it is a time to
> > eat nuts)
> >
>