330 



Bird -Lore 



FALL MIGRATION 



LOCALITY 



Sa\annali, (ia 



Hiloxi, Miss 



Raleigh, N. (' 



IFclenaj Ark 



Washington, 1). C 



Morristown, N.J 



Oberlin, Ohio 



Riclimond, Ind 



Horseshoe Lake, Mo 



Onaga, Kans 



New Haven, Conn 



Harvard, Mass 



Lynn, Mass 



New York, N. Y 



Ballston Spa, N. Y 



Geneva, N. Y 



Ann ArlDor, Mich 



Madison, Wis 



Lanesboro, Minn 



Boulder, Colo 



Yellowstone Park, Wyo.. 



Missoula, Mont 



Priest River, Idaho 



Newport, Ore 



London, Ont 



Okanagan Landing, B. C. 



Number 



of years' 



record 



Average date of 

 last one observed 



September 21 

 June 24 



August IS 

 August 18 

 September 10 



August 26 



July 24 



July 18 

 August 17 



August 24 



August 7 

 September 9 



Latest date of 

 last one observed 



October 15, 1909 

 October 25, 1905 

 June 26, 1889 

 September 21, 1894 

 September 3, 1894 

 September 6, 1914 

 September 23, 1907 

 September 15, 1908 

 October 13, 1905 

 September 30, 1892 

 August 13, 1903 

 August 4, 1909 

 September 3, 191 1 

 October 4, 1914 

 July 24, 1890 

 August 22, 1915 

 October 23, 1915 

 August 22, 1914 

 August 26, 1888 

 August 14, 1910 

 August 25, 1914 

 August 28, 1915 

 July 24, 1914 

 September 15, 1900 

 August 12, 1902 

 September 28, 1905 



Notes on the Plumage of North American Birds 



FORTY-FIFTH PAPER 

 By FRANK M. CHAPMAN 



(See Frontispiece; 



Cliff Swallow (Petrochelidon lunifrons, Figs, i, 2). — The adults of this 

 species are alike in color, but the young bird (juvenal or nestling plumage), as 

 Fuertes' figure (Fig. 2) clearly shows, is quite unlike its parents in many 

 particulars. The crown and back are brownish, instead of steel-blue, there is 

 no white mark across the brow, etc. 



In this plumage the young bird migrates, and, as with most of our Swallows, 

 the postjuvenal molt does not occur until winter quarters are reached. For 

 this reason specimens are lacking to show its exac^ nature, but it evidently 

 is complete, since, when the Cliff Swallows return to as in the spring, young and 

 old cannot be distinguished. 



Violet-green Swallow {Tachycineta thalassina, Fig. 3) . — The plumage changes 

 of this species doubtedless resemble those of its relation, the Tree Swallow. 

 There is, however, a well-marked difference between the plumage of the male 



