Advice about selecting optics for birding and reviews of binoculars and spotting scopes. Sponsored by Eagle Optics.

Birding optics reviews, articles, manufacturers, and retailers.

Articles by Michael and Diane Porter on how to choose and use them, comparison charts of top brands, and how they work.

Information about birding with Tele Vue telescopes, with telescope and accessory selection guides, specifications, reviews, usage notes, and dealer list.

Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide.

Sells binoculars, scopes, and tripods. Includes reviews, articles on optics basics and a buying guide.

Comparison of popular binoculars and telescopes used by birders, with recommendations.