86 SIXTEENTH REPORT. 



able to fly was taken in a burned swamp, and shortly after this young birds 

 became abundant. A nest found on July 14, in low ])usheH in an unburncd 

 swamp, contained four eggs in an atlvancetl state of incubation. The parent 

 bird was on this nest when it was found, and was so fearless that she was 

 touched before she became alarmed enough to fly. 



48. Spizella passerina passerina. Chipping Sparrow. — This species was 

 rather common thruout the burned lands and the margin of the hardwood 

 forest. During July, the birds seemed to feed almost entirely on the ground, 

 but after the first week in August the}^ were found almost exclusively in 

 the trees. As a result of this change, it became increasingly numerous in 

 the margin of the hardwood forest. It congregated, too, in the groves of 

 unburned pines in the burn, where the birds fed so much like warblers that 

 a few were at first mistaken for the latter. A pair of birds were seen build- 

 ing a nest on July 3. On the twentieth, a family of four young birds just 

 out of the nest were noted near camp, and shortly after this date, young 

 birds became common. The species was not decreasing in abundance at 

 the time of our departure on August 24. 



49. Junco hyemalis hyemalis. Slate-colored Junco. — Common thru Jul}^ 

 this species became still more abundant in August, and in that month must 

 have vied closely with the white-throated sparrow in numbers. It fre- 

 quented the burned lands and the brush along the margin of the hardwood 

 forest and the rivers. In general the birds fed on the ground, but as the 

 summer advanced, they were often seen in the pines and hemlocks in com- 

 pany with the chipping sparrows. One young bird barely able to fly was 

 seen with the two adults on August 4, and other young birds were seen at 

 about this time, quite largely near the unburned swamps of spruce, cedar 

 and tamarack. 



50. Melospiza melodia melodia. Song Sparrow. — This species was abun- 

 dant during both July and August. It frequented the margins of the beaver 

 meadows and the thickets along the water courses. In July, the birds were 

 occasionally noted in the spruce and tamarack swamps, but they left these 

 places in the latter part of the month. In August they were more widely 

 distributed, and were often seen in the burned lands and about clearings 

 in the forest. The first young liirds were seen on July 8, when an adult was 

 discovered feeding two recently fledged young. On the following day, a 

 pair of birds was observed building a nest in a thicket opposite camp. A 

 nest found on July 24 along the Foster City road contained four eggs in an 

 advanced state of incubation. 



51. Melospiza georgiana. Swamp Sparrow. — A young swamp sparrow was 

 taken at the beaver meadow on July 19. It was the only record secured, 

 but on that date several others were seen in the same place. The species 

 had entirely disappeared on the twentj^-seventh and was not noted again. 



52. Pipilo erythrophthalmus erythrophthalmus. Towhee. — This species 

 was common during July, especially at the margin of the hardwood forest and 

 in thickets along the water courses. In August the birds were found to be 

 more abundant in the burned cedar swamps that had partially gro\\ai up with 

 brush. They avoided the open burn. The first young birds were recorded 

 on July 13. On this date a family of five was seen at the edge of the hard- 

 woods. The 3^oung were just able to fl}'. Immediately after this date 

 young birds became common. 



53. Zamelodia ludoviciana. Rose-breasted Grosbeak. — Thruout the sum- 

 mer, this species was noted along the margin of the hardwood forest and in 

 the river thickets. It became gradually rarer in August, and after the 



