chipster454
Well-known member
I always struggle identifying Cooper's and Sharp-Shinned hawks. I was leaning towards juvenile Cooper's Hawk for this bird, but the Merlin bird app is suggesting Sharp-Shinned. What do you guys think?
There are plenty of young Sharpies with distinct streaks, though they tend to be more blotchy and more orange-colored and combined with barring on the flanks.Streaked breast = Juv Coopers
Barred breast = juvenile SHHA never streaked.
That’s a little pedantic - I was referring to the overall breast and belly pattern. Juvenile Sharp-shinned are never completely streaked and the streaking (which is somewhat variable) is concentrated in the chin and upper breast - the rest of the body is patterned with tear-shaped and leaf shaped spotting right throught the chest and down to the undertail coverts with some wide bars on the flanks (not streaks!).There are plenty of young Sharpies with distinct streaks, though they tend to be more blotchy and more orange-colored and combined with barring on the flanks.
Your wording implied that they never have streaks. I was just trying to make it clear that a streaked breast doesn't necessarily mean it's a Cooper's. And I should add that a lot of new birders think the breast includes the belly.That’s a little pedantic - I was referring to the overall breast and belly pattern. Juvenile Sharp-shinned are never completely streaked and the streaking (which is somewhat variable) is concentrated in the chin and upper breast - the rest of the body is patterned with tear-shaped and leaf shaped spotting right throught the chest and down to the undertail coverts with some wide bars on the flanks (not streaks!).
Compare to juvenile Coopers that is streaked right the way from the upper breast through to the lower belly.
See here
A Beginner’s Guide to IDing Cooper’s and Sharp-Shinned Hawks
The differences are subtle, but shape and size can help in a big way.www.audubon.org
It is clearly a Cooper‘s Bird Nuts, you are over complicating it - the belly streaks as well as the breast and upper breast streaks can be seen in the first image - that is what I am referring to. In ‘description terms’ Sharp-shinned are referred to as having ‘barred breasts’ in juvenile plumage, Cooper’s ‘streaked breasts’ regardless of a bit of admix under the chin and at the top of the breast.Your wording implied that they never have streaks. I was just trying to make it clear that a streaked breast doesn't necessarily mean it's a Cooper's. And I should add that a lot of new birders think the breast includes the belly.
And I wasn't saying that it wasn't a Cooper's. I agree, it is absolutely a Cooper's. I did not mean to make things more complicated or start an argument. I'm sorry and I understand why you would react that way.It is clearly a Cooper‘s Bird Nuts, you are over complicating it - the belly streaks as well as the breast and upper breast streaks can be seen in the first image - that is what I am referring to. In ‘description terms’ Sharp-shinned are referred to as having ‘barred breasts’ in juvenile plumage, Cooper’s ‘streaked breasts’ regardless of a bit of admix under the chin and at the top of the breast.
For people learning to bird the difference, this is a good descriptive distinction to get under the belt.
It’s not a problem - you are not incorrect but I was just trying to keep things simple! 😉And I wasn't saying that it wasn't a Cooper's. I agree, it is absolutely a Cooper's. I did not mean to make things more complicated or start an argument. I'm sorry and I understand why you would react that way.
Barred breast = juvenile SHHA never streaked.
In 'any terms' this is untrue, and it's thus misleading. At the very least it's incorrect and misleading usage of the term 'barred'.In ‘description terms’ Sharp-shinned are referred to as having ‘barred breasts’ in juvenile plumage
Then are we talking semantics? Because I wouldn’t describe the tear/leaf shaped blobs on the lower chest and belly of a juv SSHA as ‘streaks’ even though they be arranged in a loose linear pattern - the ’barred’ reference is to the side of the flanks which can be seen here. But I agree the ‘barred’ does not refer to the upper chest and my post is misleading.The only consistent (or as consistent as anything gets for this species-pair) and worthwhile distinction between the underparts of immatures of these two species is that Cooper's hawk has the streaking on the centre of the lower belly markedly finer than it is higher up on the underparts; this is not so on sharp-shinned hawk.
If you mean 'definitions', yes. They're a crucial part of how we describe birds' plumages to each other.are we talking semantics
They would be well described as 'a loose vertical linear pattern of tear/leaf shaped blobs on the lower chest and belly' - but 'barred' is fundamentally wrong and thus misleading.I wouldn’t describe the tear/leaf shaped blobs on the lower chest and belly of a juv SSHA as ‘streaks’ even though they be arranged in a loose linear pattern
Thanks for clearing that up. You previously said breast (twice), which is entirely different.the ’barred’ reference is to the side of the flanks
I see now that you added this sentence to your final para quite some time after you initially posted your last comment, and while I was writing my reply - and thus my last comment does not take account of it. Thanks again for clarifying.But I agree the ‘barred’ does not refer to the upper chest and my post is misleading.