TACHYCINETA BICOLOR [«»^^«, p. 155]. 



Add :— 



Tacliyclneta bicolor, Belding, Occ. Papers Calif. Acad. Sci. ii. p. 189 (1890) ; 

 Chapman, Bull. Amer. Mus. Nat. Hist. iii. p. 149 (1890) ; Palmer, Pr. U. S. Nat. 

 Mus. xiii. p. 265 (1890) ; Thompson, t. c. p. 610 ; Scott, Auk, vii. p. 312 (1890) ; 

 Eagle Clarke, t. c. p. 322 ; K. H. Lawrence, Auk, ix. p. 16 (1892) ; Dwight, t. c. 

 p. 138 ; Coombs, t. c. p. 206 ; Scott, t. c. p. 213 ; Attwater, t. c. p. 310 ; Hatch, B. 

 Minnesota, p. 351 (1892) ; Cory, Cat. West Ind. B. p. 115 (1892) ; C. Hart 

 Merriam, N.-Amer. Pauu. no. 7, p. Ill (1893) ; AUen, Bull. Amer. Mus. Nat. 

 Hist. V. p. 40 (1893). 



Mr. Eagle Clarke states that a specimen from Port Churchill, Hudson's Bay, is in 

 the Gillespie collection in the Edinburgh Museum. 



Mr. William Palmer states that he saw this species on the Magdalen and Mingan 

 Islands, though not abundantly. 



Mr. Hatch gives an interesting note on the species in Minnesota, from which we 

 make a few extracts : — " This bird loses no time in making its northern migrations as 

 soon as there is to be found an appropriate supply of food. Quite early in April, when 

 the sun has driven away the cheerless clouds enough to let his rays begin to warm the 

 recently frozen earth a little, and clusters of tiny forms of insect life begin to occupy the 

 air, the White-bellied Swallows, often accompanied by the Purple ]\Iartins, appear 

 suddenly upon the scene, in limited numbers, as avant-courriers of the hosts to come when 

 the question of food-supply has been assured. Sometimes, after a few hours spent here, 

 as described, in connection with the Purple Martins, they leave as suddenly and as 

 completely as they came, and are not seen for five, ten, or even fifteen days, if the season 

 remains exceptionally backward ; yet there have been years when, all of the conditions 

 referred to being continuously unfavourable, they have come early and remained. The 

 time of average arrival may be set down at about the 12th of April in the southern part 

 of the State, not much time therefore passing before they reach all parts of it. In 188 !• 

 they were not in the more southern tier of counties till the 27th of ^Vpril, \\ hin'oas in 

 1875, according to my notes, they arrived in the latitiule of Minneapolis hy the "^th, nnd 



in 1885 on the 7th of the month They retire from the State exceptiDually 



early, not even Avaiting for the first frost, and they are usually gone by the 2."th of 

 August. In 1870 Mr. W. L. Tiffany, a very competent observer, reported them clean 

 gone, as well as the Purple Martins, on tlie 23rd of that moutli. Tlieir d(>parture on 

 that occasion was noticed by many observers (jf the habits of tlu' l)ir(ls, as ilicrc was an 

 unusual demonstration of preparation by lioth species for many liours lirlur.- I lie Hist 

 movement took place." 



Mr. Dwin;ht states that in the Pennsvlvanian Allcghanies the \\'liiti>-hi'llic(l 



3 J' 



