You know that spring has sprung when you see birds building their nests.  One spring, at Thickson’s Woods Nature Reserve in Whitby, Ontario, a pair of Black-capped Chickadees (Poecile atricapilla) worked industriously to hollow out a cavity in a dead tree trunk, preparing to lay their eggs. Thickson’s Woods is  a mixed forest where many species of birds and animals … Continue reading Black-Capped Chickadees Excavate A Nest In Thickson’s Woods