Erythrism in Spring Peeper (Pseudacris crucifer) in Maritime Canada

@article{Mcalpine2018ErythrismIS,
  title={Erythrism in Spring Peeper (Pseudacris crucifer) in Maritime Canada},
  author={Donald F. Mcalpine and John Gilhen},
  journal={The Canadian Field-Naturalist},
  year={2018}
}
We document three cases of erythrism in Spring Peeper (Pseudacris crucifer) in New Brunswick and Nova Scotia. Although the source of erythrism in Maritime P. crucifer remains uncertain, the occurrences reported here demonstrate this colour morph to be a widespread, although apparently rare, form in the Canadian Maritimes region. 
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