Xantus's Hummingbirds live year round in the mountainous areas of Baja California. They've also been sighted as far north as British Columbia. They have a broad red bill with a black tip that makes them easily identified.
Photo from Wikipedia
It's a medium sized bird, 8-9 cm long and weighs about 3-4 grams. The bird was named after John Xantus de Vesey, a Hungarian zoologist.