Nikon D200
Sigma 120-300 f2.8 EX HSM
Sigma APO teleconverter 1.4x EX
ISO 400
F4.5, 1/750 second
Provo, UT

I think this is a Hammond's Flycatcher Expidonax hammondii. I'm not the best at Identifying birds, so if I'm wrong, let me know.