House Wren

   House Wrens are aggressive and adaptable nesters.  They will build their nests in just about any container left out in the open -- flowerpot, empty tin can, pocket of an old coat -- as well as tree holes and next boxes.  They often bully other birds, ejecting them from nest sites and even destroying eggs and young.  

   Two broods are raised each season.  The male frequently changes partners in mid-season, so that while his original mate is still feeding chicks, another female is sitting on new eggs.    

House Wren