JOURNAL 



OF THE 



Maine Ornithological Society. 



OFFICIAL PUBLICATION OF THE MAINE ORNITHOLOGISTS. 



Issued every quarter on the first of March, June, September and December of each year. 



Publication Office: 97 1-2 Exchange St., Portland, Maine. 



Send renewals and matter for publication to the Journal of the Maine Ornith= 

 ological Society, 22 Elm St., Portland, Me. 



Price, $1.00 per annum. 



Single Copies, 25 Cents. 



OPFICERS 



President, J. Merton Swain, Farmington. 



Vice-President, Dr. William C. Kendall, Freeport. 



Secretary and Treasurer ; Dana W. Sweet, Phillips. 



Councillors, Jed F. Fanning, Portland; Dr. A. L. Chase, 

 Bangor. 



CONTENTS. 



Page 



Manly Hardy, 1 



An Observation of the Development of the Social Instinct in Cedar 



Waxwings, ........... 9 



Notes on the Winter Birds of 1906-1907, 12 



Time of Incubation of the Ovenbird, ....... 18 



Notes on Washington County Birds, ....... 20 



Editorials, 21 



Bird Notes, 22 



