| historical pesticide applications coincided with an altered diet of aerially foraging insectivorous chimney swifts. | numerous environmental pressures have precipitated long-term population reductions of many insect species. population declines in aerially foraging insectivorous birds have also been detected, but the cause remains unknown partly because of a dearth of long-term monitoring data on avian diets. chimney swifts (chaetura pelagica) are a model aerial insectivore to fill such information gaps because their roosting behaviour makes them easy to sample in large numbers over long time periods. we report ... | 2012 | 22513860 |