258 Trans. Acad. Sci. of St. Louis. 



exceptionally some remain to near the end of the month (April 

 29, 1904, and April 22, 1888, St. Louis). In fall migration fore- 

 runners appear sometimes in September (September 24, 1901, 

 Keokuk; September 29, St. Louis), but usually not before 

 early in October, sometimes even in the second week of that 

 month. At St. Louis the bulk is present between the tenth 

 and twentieth of October, when troops of 12 or more are not 

 very rare. The last transients are seen near the end of the 

 month, seldom lingering into the first week of November 

 (November 4 and 6, 1894, Keokuk). 



749. REGULUS CALENDULA (Linn.). Ruby-crowned Kinglet. 



Sylvia calendula. Regulus calendulus. 



Geog. Dist. North America, north to the limits of tree growth, 

 to Prince Edward Island, Labrador, Keewatin, Mackenzie, 

 Yukon and Alaska. Breeds from Quebec, Mackinac Island 

 and high mountains of New Mexico and Arizona and from north- 

 ern California northward and winters entirely across United 

 States and over whole of Mexico to Guatemala, chiefly from 

 the Ohio River and southeastern Missouri southward and 

 throughout California. 



In Missouri a common and generally distributed transient 

 visitant, and a winter resident southward. Occasionally one 

 is seen in midwinter in the vicinity of St. Louis, but its real 

 winter range begins in the heavy forests of the southeast, where 

 the species is quite common throughout winter. The first 

 Ruby-crowns arrive from the south soon after the middle of 

 March (March 19, 1907, Shannon Co., Woodruff; March 20, 1886, 

 St. Louis; March 20, 1898, Independence; March 23, 1889, 

 Laclede, Linn Co.; March 24, 1893, Keokuk) and the bulk is 

 present between April 4 and 20. The " lasts" are usually seen, 

 in all parts of the state, early in May, but loiterers are some- 

 times met with in the second week of that month (May 9, 1882, 

 and May 13, 1907, St. Louis; May 10, 1905, Shannon Co., 

 Savage; May 14, 1905, LaGrange, Johnson; May 15, 1898, 

 Keokuk, Currier). In fall the first come to the state from the 

 north about the middle of September (September 14, 1901, 

 Jasper Co.; September 16, 1887, St. Louis), but it is always rare 

 until the last week of the month, when it appears more regularly. 

 In some years it has not been seen at St. Louis before October 

 5, when the bulk is generally present in all parts of Missouri, 



