has interested me not alittle, and the more so that for many years I have been making occasional observations along that very line.My notes, which began in June, 1883, were made chiefly at different places within thirty miles of Boston, but I have also the record of a single morning near Mt.Katahdin in Maine.They are more fragmentary than Mr.Wright's because they often include only a few of the very earliest singers.For some birds I have more records than Mr. Wright, while for others I have much fewer and for still others which occur on his list I have none at all.My excuse for presenting a few of
No takes yet. Share an insight, caveat, or question.
Francis H. Allen (1913) studied this question.