Fra forlagets hjemmeside:
Birding is an extremely rewarding and fun hobby, but some situations can be frustrating or unsuccessful because of a variety of challenging viewing conditions. Peterson Reference Guides: Birding by Impression offers the holistic «birding by impression» method, which not only helps with these difficult conditions, but also develops an efficient mental identification process using left- and right-brain skills..
It begins with a conscious assessment of a bird’s unchanging physical characteristics, including general size, body shape, structural features (bill, legs, neck, and wings), and behavior. Using this approach, birders can quickly assess all birds and distinguish new and uncommon species from familiar ones. They can then examine more detailed field marks to fine-tune the identification. Rather than a traditional field guide, Peterson Reference Guides: Birding by Impression presents an interactive how-to approach to a more complete identification process.
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