Where can carpet beetles be found?
They are very common in the UK. Infestations of these insects mostly originate in birds’ nests such as those of the house-sparrow, house-martin, swift and starling. The carpet beetle larvae survive on the soiled wool and feathers in the nest-lining and then manage to get under the eaves in the roof space. From here they crawl into the upper rooms of the house, usually following the hot water pipe system. They appear to be attracted to warmer situations. Airing cupboards often harbour substantial infestations. Carpet beetles do, however, sometimes fly through open windows and presumably initiate infestations directly, but infestations arising from birds’ nests from eaves cause continual invasions.