Hello all,
Further to Carol's sighting, on many occasions I have seen Sulphur-crested
Cockatoos riding the ?wave? of air a few feet in front of large trucks
travelling at nearly 100km/h along the Eastern Freeway in Melbourne. The
first time I was following a truck and saw a cockatoo fly above and then
drop in front of the truck. I expected to see a puff of white feathers as
the bird was hit. No such sight. Instead, about 10 seconds later the bird
suddenly reappeared and flew into a nearby tree with its crest raised and in
full screech. I have since seen it from other angles and the cockatoos do
indeed surf the pressure wave for a few seconds. I have no doubt that this
behaviour is deliberate. Maybe a possible future research project is
adrenaline addiction in Cockatoos!
Happy Birding,
Susie
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