美洲木鸭（雄）

Nathan曾说‘A visitor is a child’ 。我在费城的第一周，就是从熟悉新生活开始。茶米油盐，衣食住行，一切皆独立自主，开始的两天各种忙乱。

Wissahickon 山谷公园（Wissahickon Valley Park）离住处不远。第一次是Nathan开车带我过去熟悉下环境，真的很不错。难以想象的是离居住区这么近的山谷里有如此多的参天大树。随着春天渐近，这里一定会像世外桃源一样美丽，溪水清澈，大树葱翠。我三个月加一百新鸟种的计划有希望了。

Wood duck
Bird
The wood duck or Carolina duck is a species of perching duck found in North America. It is one of the most colorful North American waterfowl. Wikipedia
Scientific name: Aix sponsa
Rank: Species
Higher classification: Aix
Symbol of: Mississippi

Canada goose
Bird
The Canada goose is a large wild goose species with a black head and neck, white patches on the face, and a brown body. Native to arctic and temperate regions of North America, it also occasionally migrates to northern Europe. Wikipedia
Scientific name: Branta canadensis
Lifespan: 10 – 24 y (In Wild)
Mass: 7.1 – 14 lbs (Adult, Male)
Wingspan: 4.2 – 6.1 ft. (Adult)
Rank: Species
Length: 2.5 – 3.6 ft. (Adult)
Higher classification: Branta

Snow goose
Bird
The snow goose, also known as the blue goose, is a North American species of goose. Its name derives from the typically white plumage. The genus of this bird is disputed. Wikipedia
Scientific name: Chen caerulescens
Higher classification: Chen
Rank: Species

这几只雪雁的初级飞羽好像被修剪过。难怪Nathan说有些鸭子常年都在这边。

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新种记录：（5 – 4I）

001 American Robin ♂ (I)

002 Wood duck ♂ ♀ (I)

003 Canada goose ♂ (I)

004 Snow goose ♂ ♀ (I)

005 Yellow-bellied Sapsucker ♂

006 …