The photo of a "juvenal sharp-shinned hawk" is actually a juvenal cooper's hawk. The relevant field marks are: The bird in the photo has a large, squarish head, on a relatively long neck, with a stern "Cooper's hawk" expression, rather than the "bug-eyed" expression typical of the sharp-shinned. The expression is not merely a subjective feature, it reflects the position of the eyes on the head, and the size of the eyes relative to the head. These features point to Coopers', not Sharp-shinned. This bird does not have a whitish "eyebrow". Cooper's typically don't, but sharpies typically do. It has a rather long body, with an apparent center of gravity around or lower than mid-point. A sharpie would typically have a shorter, rounder body, with the thickest part being around the chest. It has relatively thick legs. A sharpie would have much thinner legs. About the only field mark that might suggest a sharpie is the chest streaking, which is on the heavy side and rather reddish for a Coop. But the streaking on this bird is not inconsistent with the bird's being a Coop, since both species are highly variable in regards to their streaking. I would not call a bird a sharpie based on its streaking alone. Note that the distinction between the two species is frequently a tough call, but the best that can be said about this photo is that this is a doubtful bird, given the number of features that point to Coop. Thus is it not the best photo to illustrate a sharpie. Generally speaking, structural features (size of head, thickness of legs) are pretty reliable, and all of these that are visible point to Coop. I should note that I visited the photographer's "photos of hawks" page. She has misidentified a red-tailed hawk as a red-shouldered hawk. The latter mistake is not a tough call, though it is relatively common among people who post photos on the web. It looks like she has looked at some markings (the chest) but ignored the tail, and not considered the bird's stocky, short-tailed structure. No experienced hawk-watcher would have made this mistake. I conclude that although the photographer may take excellent photos, she is not an expert in hawk ID. I suggest that this photo be vetted by a bona-fide expert.