Neotropical Birding 24
... second increments of nesting common loons to experimental approaches on Lake Umbagog, NWR, Each approach consisted of slowly moving to within 100 m ...
simplified environmental study - JICAThe number of individuals per population was assessed by direct counting using binocular (Swarovski. 10 × 25 CL pocket binocular) and a spotting scope (Kowa. Main Index: - BirdGuides CDNObservations were made using a 22-60x Optolyth TBG. 80 spotting scope, 10x42 WB Swarovski binoculars, a hand-held office tape recorder and a stopwatch. Gulls in the Town of Sidney, BC: Problems and Suggested Solutions... Swarovski ATX30-70x95 spotting scope. The vantage point locations for the estuarine bird counts are shown in Figures. 5. All waterbirds ...
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