Ruby-crowned Kinglet (Regulus calendula)
Above: A Ruby-crowned Kinglet at Prime Hook NWR, Delaware (3/2/2008).
Below: A Ruby-crowned Kinglet in Washington Co. (10/7/2006) and Carroll Co. (10/8/2006), respectively.
Below two: Photographed in Somerset Co., Maryland (12/11/2005).
Below two: Photographed at Piscataway Park in Prince George's Co., Maryland (11/19/2005).
Below: Behold the fury of the mighty Ruby-crowned Kinglet - Assateague Island, Maryland (10/30/2010).