How Birds Work, Workman Publishing Binoculars and Optics/Shop by Brand/Zeiss Optics/Victory Series Dimensions: 20"W x 29"H

Dimensions: 20"W x 29"H

This means the frequencies at which the different chime tubes vibrate are related to one another by simple whole-number ratios

Does not come with roof pieces

The deck mount connects to any railing from 2

It has a low profile for easy placement in your bird bath

How Birds Work, Workman Publishing Binoculars and Optics/Shop by Brand/Zeiss Optics/Victory Series Dimensions: 20"W x 29"HEngineered by evolution to thrive in the wild A tiny textbook to learn on your own How Birds Work goes beyond the typical field guide to show us not only what birds look like but why. Why do many owls have asymmetrical ear openings? (Hint: It helps them pinpoint prey; see page 40.) And why does the Grey Heron rest on one leg at a time? (Hint: Not because its tired; see page 66!) Birds boast a spectacular array of adaptations suited to their incredibly