38 AVIFAUNA COLUMBIANA. 



divides the two species in such complete manner. It seems that after 

 all the two boys may have been right in stating, as they did with hesi- 

 tation in 1SG2, that P. carolinensis is the ordinary summer Tit ; and that 

 specimens indistinguishable from ordinary atricapillm occur in winter. 



Pir,. 5.— Black-capped Titmonse. 



Mr. William Palmer considers the latter to be rare, his specimens hav- 

 ing all been taken in very severe winter weather. His first specimen 

 was shot at Arlington, December 25th, 1878, and others were secured by 

 him at Falls Church, January 2d, 1870. Mr. Henry Marshall has taken 

 it at Laurel, Md. [44] 



16. (113.) Parus carolinenis And. Carolina Titmouse. 



A summer resident ; abundant. (See remarks under preceding spe- 

 cies, i hving tothe close resemblance between these two species, wehave 

 not been able to ascertain their times of arrival and departure.) [47] 



Family SITTID^F : Nuthatches. 



H?. (1(K) Sitta carolinensis Ghn. t Carolina Nuthatch ; Wiiite-rkllied Nut- 

 hatch. 



A very abundant permanent resident; especially numerous in the 

 fall. Frequents high open woods; nests in holes. [571 



Fig. G. — Head of Canada Nuthatch, nat. size. 



