Thursday, December 31, 2015

Warbler Guy, was 2015 a successful breeding season in Wisconsin for the endangered Kirtland's Warbler? Where does the Kirtland's Warbler breed in WI?

Jerry, there's a wonderful news release at the following web site link (next paragraph) that highlights the successful breeding of Kirtland's Warbler during the past 2015 nesting season in Wisconsin.

Wow, time migrates quickly, given:

It's amazing for eight straight breeding seasons the federally endangered Kirtland's Warbler how bred successfully in the Badger State.

Of course, the largest number of newborn Kirtland's occur annually in Michigan (more than 1,000 males are present annually in Michigan during the breeding season).

There's also one ongoing, annual Kirkland's nesting site in Ontario (see graphic/figure, below).

Tuesday, December 22, 2015

Warbler Guy: Which wood-warbler species' utilize non-breeding season habitat in the tropics that includes "shade grown" coffee farms? In theory, is it correct that changing coffee drinking patterns favoring "shade grown" coffee could benefit songbirds such as wood-warblers?

The brief answer, Jeremiah (in Rockford, IL)
is to note that several wood-warbler species likely
benefit from changed coffee farming methods that
favor “shade-grown” coffee, including Canada, Wilson's, Black-throated Green, and Cerulean Warbler. Cerulean populations, in specific, have dropped precipitously, perhaps in part due to habitat destruction of their "wintering" grounds (per Breeding Bird Survey trends and results suggested by other monitoring efforts).

To learn more (go to the web site) and/or see the following two links:

(For a nice overview of a blog site article related to the benefits of using "shade grown" coffee as your morning delight choice, please see:

Friday, December 11, 2015

Warbler Guy: Did nesting Kirtland's Warbler in Wisconsin occur again in 2015? Wisconsin Kirtland's Warbler nesting occurs annually in Wisconsin?


Yes and yes...and more 2015 details appear below with a summary from the WI DNR's web site:

Kirtland’s Warbler Monitoring Summary

Three banded nestlings, Adams County. Photo courtesy of Sarah Warner (USFWS).

Summary Highlights

  • 15 males and 14 females were confirmed in Adams County, 3 males and 2 females in Marinette County, 3 males in Bayfield County

  • 15 nesting attempts were made by 14 pairs in Adams County, 1 nesting attempt by 1 pair in Marinette County

  • 8 of the 15 Adams County males had been banded in previous years; 1 of those was banded as a nestling 2014

  • 3 of the 14 Adams County females had been banded in previous years

  • 16 nests: 15 in Adams County, 1 in Marinette County

  • 13 nests were successful: 12 in Adams County, 1 in Marinette County

  • 36-53 young fledged: 34-51 in Adams County, 2 in Marinette County