Eastern Bluebird (Sialia sialis sialis) - female/immature
Floyd Bennet Field, Brooklyn NY, USA - November 13, 2005
Canon EOS 20D, Canon 400mm f/5.6 L USM
© Martin Lofgren

Eastern Bluebird (Sialia sialis sialis) - adult male
Floyd Bennet Field, Brooklyn NY, USA - November 13, 2005
Canon EOS 20D, Canon 400mm f/5.6 L USM
© Martin Lofgren