I hope you don't mind that I edited your image. I'm leaning towards a Red-Shouldered Hawk, lucien.
Here is yours edited - I increased the whites slider in Camera RAW, took it into On1 Resize 10 to enlarge it, then took it back to Photoshop to crop.
And here is an image linked to AllAboutBirds.org with one of their images of a Red-Shouldered Hawk. The reason I'm leaning towards Red-Shouldered is yours looks like there is a little reddish color in the upper part of the chest plus this one has the fan-shaped tail feathers while flying. Even the body shape looks similar. A Cooper's Hawk is a little more slender and tubular (longer) in proportion to its width.
Just a little food for thought....