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Fig. 1 | BMC Zoology

Fig. 1

From: Widely distributed breeding populations of Canada warbler (Cardellina canadensis) converge on migration through Central America

Fig. 1

Average longitudinal positions of 25 male Canada Warblers tracked with light-level geolocators (solid coloured lines) from three different breeding sites in Alberta, Manitoba and New Hampshire (horizontal black dashed lines). The dotted coloured lines around the longitude values indicate plus or minus one standard deviation. The approximate timing of fall migration is bracketed by the grey vertical lines. The most western and eastern limits of the Gulf of Mexico are indicated by horizontal black lines

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