Supplementary Table S1. Call recognition model specifications in Song Scope.

Supplementary Table S2. Mean recording quality (from 1 = clear to 5 = unusable) and false negative rate (calls skipped by recognition models, determined by a human observer) at each site on each island and with different amounts of wind shelter. False negative rate&break; associated with each recording quality and species recognizer.

Supplementary Table S3. Detection rate, mean number of nocturnal burrow-nesting species vocalizations per night (±SE), and total number of calls recorded at four Aleutian Islands during 2008 and 2009. Detection rate is the percent of nights during the recording period when vocalizations were detected.

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