Re-evaluating Bay-breasted Warbler breeding range: Nine-years presence in Lower Michigan
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Abstract
he breeding range of the Bay-breasted Warbler (Dendroica castanea) is thought to include only the northernmost portions of six northeastern and northcentral states in the United States. During a 10-year banding study of Kirtland's Warblers (Dendroica kirtlandii) in northern Lower Michigan, we caught 44 Bay-breasted Warblers outside of their reported migration dates during 9 of the 10 years. Two birds captured in 1997 were in breeding condition; one possessed a cloacal protuberance and the other a full brood patch. We also captured two hatching year birds with fleshy rictal flanges in 1997. We suggest that these records indicate a long term presence of Bay-breasted Warblers on breeding grounds considerably farther south than previously recorded.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Re-evaluating Bay-breasted Warbler breeding range: Nine-years presence in Lower Michigan |
| Series title | The Wilson Bulletin |
| DOI | 10.1676/0043-5643(2002)114[0415:RETBBW]2.0.CO;2 |
| Volume | 114 |
| Issue | 3 |
| Year Published | 2002 |
| Language | English |
| Publisher | Wilson Ornithological Society |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 2 p. |
| First page | 415 |
| Last page | 416 |
| Country | United States |
| State | Michigan |
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