Why do birds take dust baths?

26 August 2009 Someone asked the other day,  “Why do birds fluff themselves in the dust?”   The question arose because our ubiquitous city birds, house sparrows (Passer domesticus), are champions of dust baths.  House sparrows prefer very fine dust and will flap up a storm when they find a patch of it.  They dig a hollow … Continue reading Why do birds take dust baths?