Contact: Lee J. Siegel
University of Utah
Caption: A finch in Ecuador's Galapagos Islands pulls a cotton ball from a dispenser set out by scientists. A University of Utah study showed that when the cotton is treated with permethrin -- a mild pesticide used in human head-louse shampoo -- and the birds use the cotton in their nests, blood-sucking fly maggots are killed, thereby protecting the finches and their offspring that often fall prey to the maggots.
Credit: Sarah Knutie, University of Utah
Usage Restrictions: None
Related news release: Is self-fumigation for the birds?