2008-U of Alberta nestbox) in Edmonton, AB mate is unbanded male, 2 eggs, 1 young hatched & fledged, 1 foster chick added at fledging. Acquired nest after territorial battle - former resident female died the next day. 2009-same location, same male, 4 eggs, 4 young fledged (1 died, unknown causes after fledging). 2010-same site, new male (bl *5/D), 3 eggs, 3 young fledged (1 died after fledging). 2011-same site, same mate, 4 eggs, 4 young fledged (1 died after fledging).