Petrochelidon

Petrochelidon is a genus of birds known as cliff-nesting swallows. The genus includes all of the five species of birds commonly called cliff swallow, and contains the following species:
单词 | Cliff Swallow |
释义 |
Cliff Swallow
英语百科
Petrochelidon![]() Petrochelidon is a genus of birds known as cliff-nesting swallows. The genus includes all of the five species of birds commonly called cliff swallow, and contains the following species: |
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