Today I did my first nest change out on two cavities. As the next two weeks go by I will be conducting Nest changes on the cavities with young. A nest check is done every 5 - 7 days. A nest change, where the bedding is replaced, is done when young are about ten days old. This eliminates nest parasites, especially Blowfly, and helps keep the nest sanitary. While a nest change is not mandatory of a purple Martin landlord, it does allow one to help their martins raise a successful brood.
Below is a check of my T-10 house and a change of a chirpyNest cavity
