Canadian Forest Service Publications

Using automated sound recording and analysis to detect bird species at risk in southwestern Ontario woodlands. 2014. Holmes, S.; McIlwrick, K.; Venier, L. Wildlife Society Bulletin. 38:591-598.

Year: 2014

Issued by: Great Lakes Forestry Centre

Catalog ID: 34934

Language: English

CFS Availability: PDF (request by e-mail)

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Plain Language Summary

We conducted a field study to compare the effectiveness of acoustic recordings coupled with automated sound recognition versus traditional point counts in terms of their relative abilities to detect rare bird species in southwestern Ontario woodlots. The comparison was made in 50 woodlots, each of which contained a standard Forest Bird Monitoring Program plot of 5 point count stations. An automated recording device was present at one of the point count stations. We found that the automated recording and analysis system worked at least as well as the more traditional point count method in identifying woodlots containing Acadian Flycatcher and Cerulean Warbler, but that both methods combined performed better than either method alone. The automated system also required considerably less effort in the field (a difference of 140 min. per woodlot) with very little additional effort in the lab (~22.5 min. per woodlot, for all 3 species combined). The automated system was not as effective in detecting Prothonotary Warbler possibly because the species is much less common in southern Ontario than the other two species.