DETERMINATION OF RAPTOR MIGRATORY PATTERNS OVER A ...
Intensive nest searching was carried out in the study sites using a spotting scope and binoculars, starting from August 2014 to. January 2016. The egg weight ...
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.
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