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Showing 1 to 1 of 1 for “"Black-billed Cuckoo"”.
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Detection, habitat use, and occupancy dynamics of Black-billed Cuckoos and Yellow-billed Cuckoos in Illinois
Black-billed Cuckoos (Coccyzus erythropthalmus) and Yellow-billed Cuckoos (C. americanus) have experienced extensive range-wide population declines over the last several decades. However, as cuckoos are patchily distributed and hard-to-detect, population size and trend estimates are not always well …