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April 2023, Vol. 51, No. 2 Birds of Acadia National Park and Mount Desert Island, Maine, Part Two: Somes Sound, Central MDI Michael J. Good Ten Million Acres of Bird Habitat in Northern Maine John M. Hagan The History of Bird Observer. Chapter 6 William E. Davis, Jr. Twelfth Report of the Maine Bird Records Committee Louis R. Bevier, Trevor B. Persons, Kyle A. Lima, Will Russell, and Douglas P. Hitchcox Photo Essay: Birds of the Twelfth Maine Bird Records Report James Baird: Talented Ornithologist, Visionary Conservationist, Captivating Educator, and Mentor to All Wayne R. Petersen Musings from the Blind Birder: Photographs, Memory, and the Moment Martha Steele Field Note: Owl, Squirrels, and Flickers Time-sharing a Tree Cavity (William E. Davis, Jr.) Field Note: Great Blue Takes a Swim (Kathleen M. Buckley and Jeffrey Boone Miller) Bird Sightings: November-December 2022 Neil Hayward and Robert H. Stymeist Bygone Birds Neil Hayward About the Cover: Least Bittern William E. Davis, Jr. About the Cover Artist: Steve Hamlin At a Glance Wayne R. Petersen ^ top