Field Guide
A field guide is a portable reference book used by naturalists to identify birds, plants, mushrooms, and other wildlife in the field, often with illustrations and range maps.
Estimated value as of 2026 · Source: Average from current retail listings in Audubon Shop and similar sources for pop…
Fun Fact
The iconic Peterson Field Guide series, first published in 1934, revolutionized bird identification by introducing the 'Peterson Identification System' with field marks and arrows pointing to key features.
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