季节 1 插曲
- 季节 1 Birding Basics: Bird Origins and Taxonomy
- 季节 1 Basic Bird Anatomy
- 季节 1 Size, Shape, and Color as Birding Tools
- 季节 1 Bird Distribution, Status, and Endemism
- 季节 1 Habitat and Season as Birding Tools
- 季节 1 Introduction to Birding Optics
- 季节 1 Tactics for Better Birding
- 季节 1 Using Bird Behavior to Identify Birds
- 季节 1 Understanding Variations in Plumage
- 季节 1 Birding by Ear
- 季节 1 Essentials of Bird Migrations
- 季节 1 Birding at Night
- 季节 1 Pelagic Birds
- 季节 1 Waterbirds, Shorebirds, and Game Birds
- 季节 1 Diurnal Raptors
- 季节 1 From Doves to Kingfishers
- 季节 1 Passerines: From Flycatchers to Thrushes
- 季节 1 Passerines: From Thrashers to Warblers
- 季节 1 Passerines: From Tanagers to Birders
- 季节 1 Photography for Birders
- 季节 1 Birding Sites in Eastern North America
- 季节 1 Birding Sites in Western North America
- 季节 1 Birds and People
- 季节 1 Birding Ethics and Conservation
The National Geographic Guide to Birding in North America - Season 1 Episode 21 第 21 集
0.00 30 分钟 
