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Detectability of non-passerines using pishing in eastern Ontario woodlands


, : Detectability of non-passerines using pishing in eastern Ontario woodlands. Canadian Field Naturalist 119(3): 377-380

During spring and summer 1997, non-passerines were surveyed in three woodlots near Amprior, Ontario, using standard point counts. and standard point counts combined with "pishing" (pishing involves the observer saying the words "pish pish pish pish" in a continuous series of short bursts). Of the 27 non-passerine species detected, 22 were recorded on more days using pishing as opposed to the standard point co.unt method. However, only three of these species were recorded on significantly more days using pishing. Several woodpecker species approached more closely during point counts with pishing, which facilitated identification. In contrast, raptors and some other non-passerines that may have otherwise gone unnoticed were identified as they fled from the pishing sound. Hence, when the overall goal of research is to detect species richness or to gather presence and absence data in woodlands, point counts combined with pishing may increase detectability of some non-passerines.

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