According to the BNA species account, the birds are likely to use the nests for their second broods, which may be initiated all the way through early August.
Thank you for caring!
On 6/25/2017 2:13 PM, Abby Gibson wrote: > We are about to start adding a ceiling to our garage, which currently > has three barn swallow nests in the rafters. Since the babies have > fledged is it safe to assume these nests are done and we can clean > them up and start on the ceiling? Thanks.