2025-09-09 foster city dawn bird watching
只有看过之后才发现这么种类细节
泥摊上零零散散的几只、长嘴，鹌鹑大小，灰色羽毛，一开始以为是sandpiper，回来一看发现长嘴的marsh bird种类太多了。我看到的在willet （北美鹬 yu）和marble gorbit之间，应该是willet：嘴巴的颜色是灰色，后者是红色。飞行时候的羽毛有白色的条纹，有机会可以观察一下。
Willet (Tringa semipalmata)
The willet (Tringa semipalmata), formerly in the monotypic genus Catoptrophorus as Catoptrophorus semipalmatus, is a large shorebird in the family Scolopacidae. It is a relatively large and robust sandpiper, and is the largest of the species called ‘shanks’ in the genus Tringa. Its closest relative…
一只落单的great blue heron，个头不大，没有在找食物, 脖子和眼睛附近的颜色对比不是很明显。
Great Blue Heron (Ardea herodias)
The great blue heron (Ardea herodias) is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North America and Central America, as well as the Caribbean and the Galápagos Islands. It is a rare vagrant to coastal Spain, the Azores, and a…
大量的，密密麻麻，蝙蝠大小，贴水面飞行，没有明显的队形， 他们到底谁决定停下来？turns out coordination problem, https://www.allaboutbirds.org/news/how-do-starling-flocks-create-those-mesmerizing-murmurations/ , AI 认为这是sandpiper完全没有想到！因为飞行起来看着很小很黑。of course sandpiper is a family, yu科
Sandpiper - Wikipedia
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snow egret 也不多，十来只一块，自己在单独一块，靠近bay bridge的那侧
Snowy Egret (Egretta thula)
The snowy egret (Egretta thula) is a small white heron. The genus name comes from the Provençal French for the little egret aigrette, a diminutive of aigron, ‘heron’. The species name thula is the Araucano for the Black-necked Swan, applied to this species in error by Chilean naturalist Juan Ignacio…
