01680cgm a2200373 i 4500 2550541611 TxAuBib 20240906120000.0 r 191010|||||||||||||||||||||||||||||eng|u 6715182 Kanopy (OCoLC)1129195343 CaSfKAN eng rda CaSfKAN TxAuBib rda The National Geographic Guide to Birding in North America. Episode 6, Introduction to Birding Optics. [Kanopy]. The Great Courses, 2017. [San Francisco, California, USA : Kanopy Streaming, 2019. 1 online resource (streaming video file) (30 minutes) : digital, .flv file, sound. tdi rdacontent c rdamedia cr rdacarrier Title from title frames. Film. In Process Record. James Currie. Originally produced by The Great Courses in 2017. This lecture discusses the core optical tools that aid us in observing birds in the field. Study the parts of a pair of binoculars, and the pros and cons of different types of binoculars. Learn how to use binoculars for birding, highlighting matters such as magnification, field of view, and depth of field. Also take account of spotting scopes, and how they provide detail that binoculars can't. Mode of access: World Wide Web. Zoology. Education films. Currie, James, actor. The Great Courses (Firm). Kanopy (Firm). https://USERNAME.kanopy.com/node/5715183 https://www.kanopy.com/node/5715183/external-image