INSESSORES: TURDID.li. I /I 



Bird makes its nest in a hollow apple-tree or post, and 

 lays four to six pale blue eggs. Two or three broods are 

 raised in a season, and generally from one nest. While 

 the female is sitting on the second set of eggs, the male 

 takes charge of the first brood. 



The Western Blue-Bird, 5. mexicana, Sw., of Western 

 North America, is six and a half inches long, the wing 

 four and a quarter inches ; the bill more slender, wings 

 longer, and blue more intense, than in the preceding. 



The Rocky Mountain Blue-Bird, 5. arctica, Sw., of the 

 Rocky Mountains, is six and a quarter inches long, the 

 wing over four and a quarter inches ; the color azure- 

 blue ; the belly and under tail coverts white. 



The Genus Regulus has the bill slender, much shorter 

 than the head, depressed at the base, moderately notched 

 at the tip ; the rictus well provided with bristles, and 

 the nostril covered by a single bristly feather projecting 

 forwards. The birds of this genus are very small, olive 

 green above, and whitish beneath. 



The Ruby-crowned Wren, R. calen- Fi 



dula, Licht, of North America, is four 

 and a half inches long, and at once dis- 

 tinguished by the crown, which has a 

 large concealed patch of scarlet feathers 

 which are white at the base. Its song 

 is clear, varied, and harmonious, charm- Ruby-crowned wren, 

 ing all who hear it. *' calendula ' Licht 



The Golden-crested Wren, R. satrapa, Licht., of the 

 Northern United States from the Atlantic to the Pacific, 

 is less than four inches long, the wing two and a quarter 

 inches, and is distinguished by the black of the crown 

 embracing a central patch of orange-red encircled by 

 gamboge-yellow ; the forehead, line over the eye, and 

 space beneath it, white. It is exceedingly active, and 

 may generally be found with other small birds gleaning 



