Woop—MersHon Expepirion, CuArity IsLtAnps. 101 
on the island, migrated on the night of September 10, and the 
next day only a very few were to be seen. On the night of Septem- 
ber 12-13, another wave occurred, and the next day they were as 
numerous as before. Many more came on September 14-15, so 
that literally thousands were on the island by September 19. Most 
of them were gone, however, on September 20, and on October 7 
the last bird was seen. At Ann Arbor, this species has but once 
been observed in the fall, September 17-30, 1916. 
100. (554) Zonotrichia leucophrys leucophrys. WHITE-CROW NED 
‘Sparrow.—The white-crowned sparrow was first seen on Septem- 
ber 19, and came on the same migration wave with the Savanna, 
white-throated and Lincoln sparrows. The white-crowned were at 
this time all about the light-house clearing, feeding on the seeds 
of beach grasses, and when alarmed sought cover in the small wil- 
lows on the first sand dunes. They were also observed feeding 
and drinking along the beaches. Many of these passed on during 
the next night, September 19, but another great wave of sparrows 
occurred on September 29, and this species was to be seen eyery- 
where except in the thick forest. It seemed to prefer the more open 
areas, such as the sand dunes and beaches, which swarmed with 
them. Nearly all left the island on the night of October 4, and 
only a few were seen as late as October 11. At Ann Arbor, the 
species is rare, and the earliest record is October 3 (1906). 
101. (558) Zonotrichia albicollis, WH1ITE-THROATED SPARROW.— 
On the morning of September 13, the white-throated sparrow was 
seen for the first time, and was then generally distributed over the 
island. As a rule, it kept in the woods and thicker cover than the 
white-crowned. The most of them passed on during the night of 
September 19. The largest migration of the species occurred on 
the night of ‘September 21, and on the following day thousands of 
this species were seen, generally in the thick forest, but many in 
the willows on the sand dunes. Another waye came to the island 
the night of September 28, and the birds that came at this time 
had mostly moved on by October 1, and by October 5 nearly all 
had gone. On October 11 only five individuals were to be found. 
At Ann Arbor, this species arrives as early as September 23 (1906). 
102. (559) NSpizella monticola monticola. Trem SPparrow.—This 
Sparrow was first seen on October 3, on the sand dunes on the west 
side of the island. It became common on October 6, when hun- 
dreds of them were seen. It was still common when the writer 
left the island, October 11. At Ann Arbor, the species arrives as 
early as September 20 (1907). 
103. (563) Spizella pusilla pusilla. Frr~p Sparrow.—The field 
sparrow probably bred on the island, as it was observed as early 
