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Violet-green Swallow

1、紫绿树燕

... Tree Swallow 双色树燕 Violet-green Swallow 紫绿树燕;海绿树燕 Black-capped Chickadee 黑顶山雀 ...

2、海绿树燕

...海绿石英岩 glaucoquartzite海绿石质 glauconitic海绿树燕 violet-green swallow ...

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