Good answer Bill. Thanks for sharing this equitable solution.
Linda Orkin
Ithaca, NY
Sent from my iPhone
> On Mar 25, 2015, at 7:33 PM, Bill Mcaneny wrote:
>
>
> WE have about 16 nest boxes on poles around our field. Initially they were
> for bluebirds, and then the tree swallows arrived.
WE have about 16 nest boxes on poles around our field. Initially they were
for bluebirds, and then the tree swallows arrived. Our strategy: the nest
boxes are erected in pairs: one for the bluebirds, one for the tree
swallows. House sparrows may move into one box in a pair, but not both.
(They
