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Post by alf1951 on Jun 9, 2015 4:42:08 GMT
I recently noticed this rook sitting on a neighbour's roof and initially thought there was something very odd about its beak - would I be right in thinking it simply has a full crop? It was in sight of the rookery and perhaps waiting its turn to deliver food to the offspring.
Thought I was taking a picture of a carrion crow here last year but looking at the beak I'm now thinking it is a raven - they are in Cumbria but I rarely see one - can anyone confirm my ID?
End of May, I thought these may be juvenile if not fledgling jackdaws but I always thought the markings on young jackdaws were less pronounced than the adults - these 2 seem particularly pale but it was a particularly bright sunny day. Their behaviour also suggested that they were young moving only between the TV aerial and the chimney stack while the others went about their usual business (including raiding our bird feeders!).
Thanks Alf  Rook - full crop by Wabi Gallery, on Flickr  raven possibly by Wabi Gallery, on Flickr  Jackdaws by Wabi Gallery, on Flickr |
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Post by aeshna5 on Jun 9, 2015 4:58:28 GMT
Yes the Rook has a full crop so presumably going to feed young. The second photo looks like a Carrion Crow to me.
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Post by alf1951 on Jun 9, 2015 14:46:02 GMT
Going by an, admittedly, old book I use the shape of the beak tip appears different to the Carrion Crow - there must be other ways to distinguish so I'll get back when I've researched a bit!
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Post by alf1951 on Jun 10, 2015 4:47:21 GMT
I think you're right Aeshna - I'll be labelling this as a Carrion Crow
Alf
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Post by alphawolf on Jun 11, 2015 7:05:25 GMT
I believe that ravens are also large than carrion crows and have that distinct throat feathers. Did you have a chance to hear the calls it made, as they both have very different sounds 
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Deleted
Deleted Member
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Post by Deleted on Jun 11, 2015 7:27:22 GMT
Your Jackdaws look like adults, Alf. I have 2 pairs nearby who don't have nests that just sit around chimney tops most of the day with one of the pairs tormenting the life out of a pair of Starlings who were trying to feed their young, the Jackdaws would sit and wait on the adults returning with food and then try and pinch the food from them.
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Post by alf1951 on Jun 11, 2015 14:54:48 GMT
As you say alphawolf - ravens have distinctive throat feathers - this doesn't although it's a poor photo anyway. The beak is also wrong for a raven and I have already given up on that idea. It's an old image and I don't recall hearing its call.
I'm sure you're right Scout - These are a none nesting pair looking for trouble!
Thanks both for your ideas.
Alf
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T
Junior Member
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Post by T on Jun 11, 2015 20:19:53 GMT
Young jackdaws lack they grey feathers round the head do they not?
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Post by alf1951 on Jun 13, 2015 4:35:05 GMT
"duller and less demarcated plumage" is how I have found it described - they're a dark grey.
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Post by dogghound on Jun 28, 2015 20:24:34 GMT
2nd Photo is definitely a Carrion Crow, what time of year was the Jackdaw photo taken? They look like they could show a hint of brown in the wing feathering which would not suggest full adult but birds less than 12 months old which have undergone partial post juvenile moult, although hard to say for sure from this angle.
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Post by alf1951 on Jun 29, 2015 6:34:47 GMT
the picture was taken 29 May this year
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Post by dogghound on Jun 29, 2015 10:44:41 GMT
Having looked at them on the computer screen, there's not enough to go on to age them other than they are not in juvenile plumage (which is pretty much a given on the time if year anyway).
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Post by matt52 on Jun 30, 2015 14:01:43 GMT
Its all in the eyes with jackdaws young have pale blue,then brown eventually turning grey in adults ..... Assuming of course you can get good enough views of the eyes to tell the difference between pale blue and grey .
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Post by accipiter on Aug 17, 2015 10:26:31 GMT
Its all in the eyes with jackdaws young have pale blue,then brown eventually turning grey in adults ..... Assuming of course you can get good enough views of the eyes to tell the difference between pale blue and grey . Correct, Matt young jackdaws have less grey on the neck and pale blue eyes in their first year. |
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