Red-tailed or red-shouldered hawk? (Everett, WA) (1 Viewer)

[bellevuebirdphotographer]

These were taken at Smith Island Habitat and Wildlife Viewing Area in Everett, WA, in April. Are these red-tailed or red-shouldered hawks? And how can one tell the difference?

Thanks in advance.

 

[Butty]

Adult red-tailed hawks. Dark leading edge to inner part of underwing. Plus: rufous tail with fine barring and thicker terminal band; pale area on scapulars; obscure barring on secondaries; dark markings on mid belly.

 

[KC Foggin]

Definitely Red-tailed Hawk and some nice captures.