singing. A bird close by me would begin the evening concert, soon fol- 
lowed by another at a little distance, and then still another farther on 
would take up the refrain, until a chorus of six or eight voices could be 
heard. The song cannot well be described. It must be heard in order 
to be appreciated. 
ROBIN — (Merula migratoria.) 
Top and sides of the head black, a white spot over the eye; rest of 
the upper parts grayish slate-color; tail black, the outer feathers with 
white spots at their tips; throat white, spotted with black; under parts 
bright reddish brown. 
Length about ten inches. 
Arrival. March 4 to April 7. 
After U. S. Biological Survey. 
Favorite Haunts. About dwellings, along highways, in orchards and 
fields. 
Field Marks. Blackish head and reddish breast. 
Song. A vigorous melody, cheerful but somewhat lacking in variety: 
"Do you think what you do, do you think what you do, do you think." 
"Cheer-i-ly, cheer-i-ly, cheer-i-ly, cheer up." 
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