3150

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In Folder: Report Nr. 3150 The Kirtland's Warbler in 1991

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3150

Item Data

Title: The Kirtland's Warbler in 1991

Title: Wildlife Division Report No. 3150

Collection Number: RG 2019-30

Scope and Content: The first Kirtland's warbler (Dendroica kirtlandii) census was organized by Harold Mayfield in 1951. The census was to be repeated every 10 years and the second census in 1961 recorded a total similar to that of 1951. The census of 1971 however revealed a precipitous drop in the population--a decline of approximately 60 percent from the 1961 count. In order to monitor the population more closely, censuses have been conducted every year since 1971. The 1991 census found 347 singing male Kirtland's warblers in Michigan. This represents a significant increase of 31 percent from the 1990 count of 265, and an encouragingly substantial increase of 108 percent from 1987 when the count was only 167.

Division: Wildlife Division

Agency: Michigan Department of Natural Resources

Surveyor: Jerry Weinrich

Language: english

Type of Resource: text

Genre: reports

Digital Origin: reformatted digital

Subject: Kirtland's warbler

Subject: animal populations

Subject: wildlife management

Subject: wildlife conservation

Subject: birds