DISTRIBUTION OF OUR BIRDS IN SPRING 19 
to determine why the species was so seldom seen in March and 
April, unless the food supply is scanty in those months. 
In four springs, the Red-headed Woodpecker was recorded but 
twice in March; and was recorded on 36 days in April, and on 116 
days in May; making a total of 152 records. Now the writer has 
a very interesting fact to state about this species, which he con- 
siders the most remarkable case of disparity in distribution that 
has ever come under his observation. In the spring of 1914, the 
Red-headed Woodpecker was recorded on 26 days in March, and 
on 28 days in April; making-a total of 54 records. ‘The species 
did not migrate in the autumn of 1913, and remained all during 
the following winter, which was very mild. 
The Downy Woodpecker, in 1910 and 1912, had but 20 records; 
in 1911 and 1913, the species had 64 records. Such great disparity 
of distribution, in four years, seems remarkable; and yet it is 
typical of the species, which is always comparatively rare in May, 
and sometimes in March and April. Like the White-breasted 
Nuthatch, the Downy Woodpecker is seldom seen during the 
nesting season. The total number of records for the species in 
four springs was 84. 
The Tree Sparrow was recorded 28 times in March and 18 
times in April, totalling 46 records. In three years—1g10 to 1912— 
the species had 15 records for March; and 13 for that month 
in 1913; thus showing irregularity for March. In April, a similar 
irregularity is evident from the following records: 1910, 0; 1911, 4; 
I9I2, 10; 1913, 4. I have found this species abundant in winter 
during mild weather; and when spring arrives early in March, 
the Tree Sparrow should be regularly seen during that month. 
The Brown Creeper was present on 8 days in March and on 
21 days in April. The highest record for the species was in 1913— 
March showing 5 and April 10 records. Why the other three 
years had only 14 records for their total, seems inexplicable. But 
this species, I have found, is irregular thoroughout the year. 
In May, 1910 and 1911, the Red-eyed Vireo had 4 records 
for each year. In 1912, the species had 13 records; in 1913, 12 
records; the total for four years being 33 records. The Red- 
eyed Vireo is not often heard outside of deep woods; but why 
there should be such great disparity between the records of two 
sets of years, I can not explain. 
The Rose-breasted Grosbeak was here. on 4 days in May, 
