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        Discussion Area 討論區 >> Photo Gallery 相片分享 I >>  Bonelli's Eagle 白腹山鵰 Juvenile (title revised)
        
(Message started by: KK Hui on Nov 27^th, 2003, 9:23pm)

Title: Bonelli's Eagle 白腹山鵰 Juvenile (title revised)
Post by KK Hui on Nov 27^th, 2003, 9:23pm

083 Bonelli's Eagle 白腹山鵰
Mai Po Nature Reserve 米埔自然保護區
27/11/2003
EOS-10D, EF500/4L IS + EF1.4x
Incident @ -1/3, ISO 200
http://www.hkbws.org.hk/fileServer/PhotoG/kkhui/kkhuiBonelliEagle1.jpg

A female Eastern Marsh Harrier ... ?

KK Hui ARPS
www.geocities.com/kkhui001

Title: Re: Eastern Marsh Harrier
Post by Mike Turnbull on Nov 27^th, 2003, 10:30pm

Looks much more like a Bonelli's Eagle to me - just look at the bill size and shape for one thing.

Great shot!

Mike Turnbull

Title: Re: Eastern Marsh Harrier
Post by Alex_Tung on Nov 27^th, 2003, 11:06pm

Would it be a juvenile Imperial Egale? ;)

Title: Re: Eastern Marsh Harrier
Post by Mike Turnbull on Nov 27^th, 2003, 11:26pm

It could be Imperial, but I'd stick with Bonelli's. Can't really point to a single clearly diagnostic feature, but rather a series of things: the bill while far too heavy for Eastern Marsh Harrier, does not appear heavy enough for Imperial, there's something about the head that doesn't look right for most Aquila eagles (I think it's the rather rounded crown and the absence of prominent gape flanges - yellow skin along the mouth). Also the ratios of primary projection over exposed tertials and winglength to tail length favour the relatively longer, narrower winged and longer tailed Bonelli's. Finally the thing that first said "Bonelli's" to me - a really subjective "jizz" thing, but even at rest this bird looks too dynamic for Imperial. Bonelli's must be easily the most dynamic large raptor we have in HK - a real "hawk-eagle".

Mike Turnbull

Title: Re: Eastern Marsh Harrier
Post by KK Hui on Nov 28^th, 2003, 8:59am

Why didn't I think of Bonelli's Eagle in the first place?! :o

I would go with your id come to think of it, Mike! As I recall it was definitely smaller than an Imperial Eagle and is of similar size to a Balck Kite ... ;D

KK Hui ARPS
www.geocities.com/kkhui_001

Title: Bonelli's Eagle 白腹山鵰 Juvenile
Post by KK Hui on Jan 9^th, 2004, 9:54pm

Bonelli's Eagle 白腹山鵰
Mai Po Nature Reserve 米埔自然保護區
09/1/2004
EOS-10D, EF600/4L + EF1.4x
Evaluative @ -1/3, ISO 200
http://img5.photobucket.com/albums/v22/kkhui/Avian/090104_25x.jpg
http://www.hkbws.org.hk/fileServer/PhotoG/kkhui/kkhuiBonelliEagle2.jpg

Just to complete the picture with an inflight shot of a Bonelli's Eagle showing its top wings ...

KK Hui ARPS
www.geocities.com/kkhui_001