Tuesday, April 14, 2015

Don Edwards San Francisco Bay National Wildlife Refuge (6)


[1. 簡介] [2. American White Pelican] [3. California Brown Pelican] [4. Snowy Egret] [5. Golden Eagle] [6. Great Blue Heron] [7. Black-Tailed Jackrabbit] [8. Others]


6. Great Blue Heron

IMG_3120 Great Blue Heron, Don Edwards San Francisco Bay NWR
Figure 6.1: 差不多是夕陽時候的great blue heron。

IMG_9516 Great Blue Heron, Don Edwards San Francisco Bay NWR
Figure 6.2: 只用一隻腳站著。

IMG_8222 Great Blue Heron
Figure 6.3: 這兩隻可說是not seeing eye to eye。

Great blue heron算是很常見的鳥,在美國從東岸到西岸、由南到北都看得到,而且未必得在National Wildlife Refuge這類地方才看得到,很多時候開車在農田間的小路上就都看到了,我甚至也在Yellowstone與Grand Teton這兩個國家公園裡都看過這鳥。

這鳥體形跟great egretsandhill crane很接近,至少算中大型的鳥。這三種鳥應該很難分錯,great egret全身白可說是最好認,而great blue heron有藍有灰,跟sandhill crane全身灰應該也很好區別。

我大部分看到great blue heron的地方屬於淡水,不過這個National Wildlife Refuge屬於鹹水就是。

IMG_3122 Great Blue Heron
Figure 6.4: 飛越濕地。

IMG_2127 Great Blue Heron
Figure 6.5: 站在水裡的great blue heron。

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[1. 簡介] [2. American White Pelican] [3. California Brown Pelican] [4. Snowy Egret] [5. Golden Eagle] [6. Great Blue Heron] [7. Black-Tailed Jackrabbit] [8. Others]

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