Kinglets are species at risk

Each year, many species of birds escape their northern breeding grounds travelling south to their same feeding grounds; some of the migrants have had to adapt as their feeding grounds have changed and no longer provide a food source. One species that has adapted are the kinglets; some populations of these birds were in decline, but the emergence of Christmas tree farms in the northeast of North America provided them with a new source of food. In B.C., kinglets are blue, which means they are a species at risk. Kinglets are small hyperactive insectivore's part of the family of birds that includes the gnatcatchers and warblers. Once they were all thought to be of the same family but kinglets were then assigned their own family known as "Regulidae." There are two species of kinglet, the golden-crowned (Regulus satrapa) and the ruby-crowned (Regulus calendula). The ruby-crowned is more secretive and tends to live a solitary existence; golden-crowned are much more sociable and they are normally seen in small foraging flocks often on the ground.

Source: Comox Valley Record, December 25, 2013
http://www.comoxvalleyrecord.com/lifestyles/236758061.html