This logo is one in a series of 32 NFL Logo redesigns. The NFL Redesigned gives background to the entire project and index to the entire series.
The Seahawks logo looks nothing like an osprey. That’s my biggest gripe with the logo (I wonder why that is?). Other than that it has to be one of my current favourites. I love the homage to the Native American ancestry without being offensive (as far as I can tell). With my iteration I tried to retain that styling as much as I could while still trying to make it look like an osprey for obvious reasons. The little flick at one end is more to allude the overall shape to that of a football (like the Eagles one) but also does a nice job of visually pairing the image with the city of Seattle and its geography.
Note: These are pieces of concept art only. These logos are not the official mark of any team in The National Football League.