![]() ![]() If you have resident bats, now is the time to call Colonial Pest and ask us about our bat exclusion procedures. We can only do this bat work for a couple of months to avoid sealing in any bats that may return to spend the winter in attic spaces.īoth chimney swifts and bats are beneficial in eliminating lots of flying insects but it’s not healthy to live with their droppings and parasites in your home (see What’s So Bad About Having Bats in My Attic?). In our region, beginning in August, we are able to seal up bat entrances in homes after making sure that all bats have left the roosting site. State laws restrict when pest control companies can perform bat exclusion. Bats, too, are protected by federal law and cannot be removed or blocked from roosting sites during nesting season when young bats may be left behind (See August is the Beginning of Bat Removal Season). AUGUST IS THE TIME TO REMOVE BATS FROM YOUR HOMEĪ homeowner faces a similar situation when bats are roosting in an attic or other void space. During their spring and fall migrations, large numbers of chimney swifts can descend with considerable ceremony to spend the night together in a suitable chimney found along the way. That means if chimney swifts are nesting in a chimney, the nest cannot be removed and the chimney cannot be screened or capped until the birds leave the area in August or September for South America. Chimney swift bugs rarely bite people but they can cause quite a panic if they show up in large numbers inside a building after chimney swifts have moved on.Ĭhimney swifts are protected by federal law and cannot be killed or harassed during nesting season without a federal permit. The swifts build half cup-shaped nests plastered to the inside surface of chimneys or boiler smoke stacks.Īnother interesting fact about chimney swifts is that they are hosts to the chimney swift bug, a blood-sucking parasite that only an expert can tell from a common bed bug. Chimney swifts were much more common when tall chimneys on apartment buildings and industrial buildings were an everyday sight. Swifts evolved from nesting in hollow trees to nesting in the old brick chimneys of a hundred years ago that didn’t have metal liners or caps. These birds are not able to perch, they cling vertically to surfaces, much like woodpeckers. The difference is that bats would be leaving their attic roosts at dusk to feed while swifts would be entering chimneys to spend the night. They are also mistaken for bats when large numbers are seen circling around chimneys or roofs at dusk. In that regard, they are similar to bats. Depending on the time of year, chimney swifts could be nesting in the chimney or just spending the night on their migration route.Ĭhimney swifts are swallow-like birds that spend almost all of their time on the wing, capturing flying insects like flies and mosquitoes. Chimneys are not good roosting sites for bats, but they are almost the only roosting sites for a unique bird, the chimney swift. When a customer calls to complain of bats nesting in their chimney, we’re always skeptical. ROOSTING BATS OR NESTING CHIMNEY SWIFTS? By Chris Williams on August 14, 2017.
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