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I have been reading through some of my
references and have come up with a question that I would like to
pose.
Gordon Maclean in "Robert's Birds of
Southern Africa" mentions a number of windblown vagrants from South
America. One of these is the American Purple Gallinule (Porphyrula
martinica). This bird is a poor flier and yet with the correct winds
it is capable of reaching sw Cape area.
Although the distance from southern Africa to
southern Western Australia is much greater, is it not feasible that known fliers
such as the swifts and swallows could not ride the same wind currents to
WA?
Comments please.
Terry Pacey
Toowoomba
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