HKBWS Forum 香港觀鳥會討論區 - Powered by Discuz! Board

Subject: 小灰山椒 Swinhoe's Minivet [Print This Page]

Author: peter2014 Time: 13/05/2015 01:50 Subject: 小灰山椒 Swinhoe's Minivet

12 May, Po Toi

Image Attachment: PET_2871.jpg (13/05/2015 01:50, 158.58 KB) / Download count 596
http://hkbws.org.hk/BBS/attachment.php?aid=21789

Author: lpaul Time: 13/05/2015 09:49

Do you have more photos of this bird? The distinct yellowish wash to the underparts suggests it might be a 'Standford's' Minivet, i.e. a hybrid between Swinhoe's and Rosy Minivets.

Author: peter2014 Time: 13/05/2015 11:18

Hi Paul, here are more pics for this bird, what do you think?

Image Attachment: PET_2905.jpg (13/05/2015 11:18, 88.34 KB) / Download count 632
http://hkbws.org.hk/BBS/attachment.php?aid=21791

Image Attachment: PET_2901.jpg (13/05/2015 11:18, 177.2 KB) / Download count 646
http://hkbws.org.hk/BBS/attachment.php?aid=21792

Author: lpaul Time: 13/05/2015 12:01

Difficult to tell, and it may simply be my screen settings. Any photos of the back/upperparts?

Author: JohnC Time: 13/05/2015 16:16

Another birder got photos of the the back. Hope he will post here.

Author: lsuiwa Time: 13/05/2015 19:53

PO TOI 12/5/2015

Image Attachment: minivet_120515_pt_1.JPG (13/05/2015 19:53, 182.54 KB) / Download count 552
http://hkbws.org.hk/BBS/attachment.php?aid=21793

Image Attachment: minivet_120515_pt_2.JPG (13/05/2015 19:53, 186.81 KB) / Download count 515
http://hkbws.org.hk/BBS/attachment.php?aid=21794

Author: Jonathmartinez Time: 13/05/2015 22:03

I had the same impression with Paul seing the first set of pictures, but the new one clearly show it was an artefact due to the camera and the light...and no yellow color at all on this new pics...

Author: lmichael Time: 14/05/2015 09:44

I think that there are some slight yellow tones on vent, flank and rump. To meet it seems that this bird is a probably a hybrid in that there are some Rosy Minivet genes there but the hybridisation event was probably at least two generations ago i.e. most of its genes are Swinhoe's. If there are F1 hybrids (which would be classic 'stanfordi' then it is logical that there will also be backcrosses.

Regards

Mike Leven

Author: Jonathmartinez Time: 14/05/2015 14:56

to me the yellow on the vent is clearly some noise due to low light area, there is the same color on the throat that do not appears on other picture.

Author: lpaul Time: 16/05/2015 07:22

A very interesting bird! Irrespective of the extent of yellow below there is clearly some pink in the tail. Whilst this is a Rosy Minivet feature, it is a male Rosy minivet feature and yet this bird is clearly a female and (sexually dimorphism) hybrid birds don't (never?) show a mix of male and female plumage traits; think for example of hybrid ducks.

[ Last edited by lpaul at 16/05/2015 07:23 ]

Welcome to HKBWS Forum 香港觀鳥會討論區 (http://hkbws.org.hk/BBS/)