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Help! Swiftlet in Taiwan!

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Old Saturday 10th November 2018, 16:26   #1
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Help! Swiftlet in Taiwan!

This swiftlet was found in Nan'au, Yilan, Taiwan on 2018/11/03.
Though I considered it as a medium to large size swiftlet in slim shape in the field (I had only little experience in swiftlets due to their rarity in Taiwan), obvious white lower belly were shown on the pictures I took.
I'm wondering about it as Aerodramus sp. or Collocalia sp.?
If it was Collocalia sp., could I ID it as Grey-rumped Swiftlet (Collocalia marginata) due to the paler rump and its closer distribution (Luzon) to Taiwan?

Part 1 (total 35 pics, all pics indicate the same individual)

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ID:	679743

Last edited by funkerhunter : Saturday 10th November 2018 at 17:34.
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Old Saturday 10th November 2018, 16:28   #2
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 2

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ID:	679750
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Old Saturday 10th November 2018, 16:30   #3
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 3

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ID:	679755
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Old Saturday 10th November 2018, 16:32   #4
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 4

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ID:	679759

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ID:	679760
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Old Saturday 10th November 2018, 16:33   #5
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 5

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ID:	679763

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ID:	679764

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Old Saturday 10th November 2018, 16:35   #6
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 6

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ID:	679770
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Old Saturday 10th November 2018, 16:37   #7
funkerhunter
Ko Cheng

 
Join Date: Nov 2018
Location: Yilan
Posts: 7
Part 7

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ID:	679776
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