In Milton, the pair of Phoebe's that nested here had two broods
finishing the second brood (fledged) in July. However, the year before,
she was a tad late and the young of the second brood didn't fledge until
the second week in August. I believe that there are several scenarios
that would attribute such a late brood to fledge at this time. I don't
believe there is any hard or fast rule for when a pair would have an
ending to their season. However, Natural Selection would eventually
determine how late a species can nest and still have success.
On 9/15/12 10:56 AM, Keri Charles wrote:
> In our backyard today we have a group of three of four young Eastern
> Phoebes flying awkwardly about and bickering with one another, with adult
> bird supervision. Does anyone know what is typically the tail end of their
> breeding season? Looking online I could only find info on when they start.
> Here's a photo of one of the youngsters:
> Catbirds were also plentiful and social today Despite a low overall number
> of birds the yard was nonetheless loud and busy!
> Keri Charles