Fall Migration List for 1901

INSTRUCTIONS.

In the first column should be stated the exact date when each kind of bird was first seen. This entry should be made on the day the bird arrives - not from memory afterwards (general statements such as "late in March," "early in April," etc., are of no value).
In the second column should be stated, with as much exactness as possible, the number of each kind of bird observed during the day it was first seen.
In the third column should be stated the date when the same kind of bird was next seen - whether this happens on the very next day, the next week, or not till a month later.
In the fourth column should be stated the date when the bird becomes common. Some birds come in a body and are common from the day of their first arrival, while others straggle along and are not common for a month or more; and others still are never common.
In the fifth column should be stated the last date when the bird was observed. In the SPRING MIGRATION this column will remain vacant in those species which breed in the neighborhood, as it can be filled only when all the individuals go North. In the FALL MIGRATION it should be filled in those species which pass farther South, but must remain vacant in those which spend the winter in the vicinity of the Station.
In the sixth column should be stated whether the species is abundant, common, tolerably common, or rare.
In the seventh column it is necessary only to say yes or no.
In filling schedules please use ink, not pencil.