LIST OF BIRDS IN THE PARK 113 



winter, being found in all portions. They begin to arrive 

 in early October and some remain until past the middle of 

 April. It is in late March that the greatest numbers are to 

 be found, at which season their musical twitterings and 

 gurgling songs are very delightful. 



Song Sparrow, Melospiza melodia melodia (Wilson) tr 

 and WT. Early in March the songs of the Song Sparrow begin 

 to be heard along the streams throughout the Park. Unfor- 

 tunately for us they do not long remain and we rarely find 

 them after the first of May. 



Lincoln's Sparrow, Melospiza lincolni lincolni (Audobon) 

 tr and occasional wr. This species is not quite so common as 

 the preceding, and they arrive a week or so later. 



Swamp Sparrow, Melospiza georgiana (Latham) tr. 

 Swamp Sparrows are not common in Swope Park. A few may 

 be found during migration in such regions as the Rifle Range 

 and along the weedy banks of the Blue River. 



Fox Sparrow, Basserella iliaca iliaca (Merrem) tr and wr. 

 Fox Sparrows are sometimes found in the Park during winter, 

 but the time to meet them in greater numbers is during March 

 and October. In March they are very musical. 



Towhee, Piplia erythrophthalmus erythrophtalmus (Linn) 

 sr. Towhees are most common near the borders of the fre- 

 quented portions of the Park, becoming almost rare in the 

 more secluded portions, regardless of the character of the vege- 

 tation. Spring migrants begin to arrive about the middle of 

 March. 



Cardinal, Cardinalis cardinalis cardinalis (Linnaeus) 

 r. Cardinals are quite common, and uniformly distributed 



