Mr. W. B. Mershon, Saginaw, Mich. Dear Sir:--Yours of the 16th is at hand and in reply I would say that the Carolina dove is _rarely_ found north of the Au Sable River, and I should not expect _ever_ to see it there in flocks in the spring; on the other hand it is just as likely to be found _early_ in the season as the Passenger Pigeon, since the Carolina dove winters regularly in southern Michigan and is one of the first birds to appear in the spring in this county, in fact not infrequently staying _here_ through the winter. On the whole, however, I think there can be little doubt that Mr. King's report relates to the Passenger Pigeon and not to the dove. I have had some photographs taken of the Carolina dove and Passenger Pigeon together, and will ask my assistant, Mr. Myers, to mail you prints of these within a few days as soon as he has time to make some good ones. If these do not show what you desire we will try again. Yours very truly, Walter B. Burrows, _Professor of Zoology._ Mr. George E. Atkinson, to whom I am indebted for much valuable data in this book, writes from Portage La Prairie, Manitoba, July 21, 1905, as follows: I was on a holiday trip on the Assiniboia River last week, and a pair of birds flew by me at a few yards' distance, flashing the pigeon color to all appearances in the sun and alighting on the bank. I turned my boat and until after I shot the bird, I would have sworn it was a pigeon, but it proved to be a large, bright plumaged dove. Atmospheric conditions considerably affected the size so that I am convinced that it is possible for even the best of us to be deceived, and a scientific record must not be formed on any supposition. Iron Mountain, Mich., May 30, 1904. Mr. W. B. Mershon, Saginaw, Mich.