Figure 4From: Temporal patterns of genetic diversity in Kirtland’s warblers (Dendroica kirtlandii), the rarest songbird in North AmericaResults of structure analyses for Kirtland’s warbler samples collected from Oscoda County, Michigan in three time intervals: 1903–1912, 1929–1955 and 2008–2009. A model of K = 2 was most supported. Each column represents an individual where cluster membership assignment is on the y-axis.Back to article page