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Post by alf1951 on Apr 2, 2017 7:48:06 GMT
To the consternation of ourselves and most neighbours one of our new neighbours has a liking for coal fires and, depending on weather conditions, frequently envelops the street in clouds of choking smoke. Yesterday I was astonished to see a rook revelling in the foul emissions from the offending chimney. It would perch on the chimney pot, wings open, for 4-5 seconds then take a short break on the ridge tiles before returning to the chimney pot for another session. It did this repeatedly for about 10 - 15 minutes. I am guessing this could be a strategy for ridding itself of parasites - rather like a blackbird uses formic acid from ants. Has anyone seen this behaviour before?
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Post by aeshna5 on Apr 2, 2017 16:30:48 GMT
I've certainly read about this behaviour in corvids + as you supposed it's likely to be of use in getting rid of parasites.
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Post by accipiter on Apr 2, 2017 16:50:27 GMT
I have read that crows are the only species that carry out this activity presumably due to their intelligence but the simple fact is I have seen house sparrows, starlings, as well as crows, rooks, jackdaws magpies, carrying out this too not to mention little owls. Bathing in steam and dust is also not unheard of too presumably as it is in smoke bathing to rid the bird of mites.
Anting is another form of bird behaviour that has yet to be explained even by the experts. Some say birds use the formic acid as a sort of fungicide / insect repellent while other experts say birds get vitamin D from the acid. There are still others that insist it is used to aid preening, there is even a theory that anting is used to induce some sort of high because apparently some birds have been seen to lose control over their bodies e.g. unable to stand / walk. But that would imply that some individuals are in fact drug addicts!
There are of course many more species that participate in these activity than the few I have mentioned and neither is it confined to this part of the world, it may be this phenomena will always remain a mystery known only by the birds themselves. Now that is a thought is it not!
Alan, observation is all
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Post by rowanberry on Apr 2, 2017 19:43:39 GMT
I think it is amazing that they've learned to do this.
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