Source:Idaho Department of Fish and Game (2012)
Keywords:Dryocopus pileatus, Picoides dorsalis, Pileated Woodpecker, Three-toed Woodpecker
These GIS shapefiles show 176 intended locations from 44 survey grids for conducting surveys for two woodpecker species: (American) three-toed (Picoides dorsalis) and pileated (Dryocopus pileatus) woodpeckers. Six locations were not surveyed due to time constraints or adverse conditions. Sixteen of the 44 grids were visited/surveyed twice during the survey period, 12 April–17 June 2012, to assess the effects of time on detection probability. The survey sites were selected using a spatially balanced survey design that selects sites randomly but enforces spatial balance across the study area. Seventy percent of the samples were placed in managed forest landscapes with some history of timber harvest and 30% in forests that did not have a history of timber harvest. Woodpeckers were surveyed at each point using a silent listening period of 6 minutes, followed by a 6-minute playback period for three-toed woodpecker and a 6-minute playback period for pileated woodpecker. All woodpeckers seen or heard during all three periods were noted.
ELECTRONIC FILE - Zoology: Birds