Goshawk vs Collared Sparrowhawk (middle toe length)

["Robert Inglis" <>]

I wasn't going to pursue this topic any further as it seemed there was 
little interest, however, Peter Shute has encouraged me to go a bit further 
after all.
For those birders interested I will spend some time over this weekend 
(raining in SE Queensland) to work on some digital images which should help 
observers to understand the concept of the distal joint of the middle toe 
and its relationship with the base of the claw of the outer toe.
I only have limited images of one species (not 100% sure which species, 
though) which should be good enough to illustrate the concept. When the 
images are ready I will upload them to a web-page and I will advise when 
they are ready for viewing.
Bob Inglis
Sandstone Point
Qld
Australia

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-----Original Message----- 
From: Peter Shute
Sent: Saturday, December 10, 2011 2:35 AM
To:  ; 
Subject: Re: [Birding-Aus] Goshawk vs Collared Sparrowhawk (middle toe 
length)
"Also from HANZAB:
For Collared Sparrowhawk: distal joint of middle toe lies beyond base of
outer claw...
.
.
.
For Brown Goshawk: distal joint of middle toe is level with or shorter than
base of outer claw."

Has anyone got any photos that clearly illustrate the above? And can "distal 
joint" be taken to mean the base of the claw, or can the actual joint 
position be distinguished in photos?
Peter Shute


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