I poked my nose into the MWR this afternoon to check out the talent.
I noticed that some infrastructure work had largely drained the
freshwater pond.
Anyhow, there were the usual overwintering Whimbrels and godwits, a
fair assembledge of stints, and the odd Sharpie and Curlew Sand.
About the only birds in breeding plumage were the Double Bandeds -
still waiting for the sign to head over to the shaky isles.
That brings me to a question I have been pondering.
Do latitudinal migratory birds [ie species that migrate north-south]
always breed at higher latitudes [ie further from the equator] than
their alternate / "winter" grounds? This appears to be the case for
birds that alternate between sub-polar latitudes and Australia, but is
it always the case - for example for birds that shuttle between
equatorial latitudes and Australia?
I can see why the migratory waders breed in the northern hemisphere -
it has tundra at the latitudes where the southern hemisphere has
ocean, and has a sea at the latitudes where the south has a frozen
continent.
Regards, Laurie.
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