Hello birders,
Shane Brady's reference to hearsay from a local at Burren Junction to the
effect that the GHL has been in the area for the last 9 months seems to cast
some doubt on the theory that it got there by "reverse migration".
Hayman et al "Shorebirds indicates that the population which breeds in
Manchuria migrates to its wintering grounds (Nepal-South China) in about
September. So the timing of the bird's reported arrival at BJ would appear
to coincide with that of its normal southward migration. Its presence at BJ
might therefore be the result of an overshoot.
If so, it would be a colossal one, more than double the length of the usual
southbound journey of the species, even given the fact that GHLs has been
known to wander from their normal flight path and turn up as vagrants in the
Andaman Islands, Malaysia, the Philippines and Indonesia.
Colin Scouler.
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