Thanks to this site -- I finally identified the name and type of hummingbird in my Northern California coastal backyard. Constantly in the lavender. Well, turns out it's Anna's Hummingbird Calypte ...
Here are the high points! From the site:
Family: Trochilidae, Hummingbirds view all from this family
Description ADULT MALE Hood usually appears uniformly dark (almost black in harsh light), but when light catches it a metallic rose-red iridescence is revealed. ADULT FEMALE Has metallic greenish yellow upperparts. Underparts grayish white with yellowish green feathering on flanks and a few dark spots (iridescent in the right light) on throat. Tail has striking white tips on outer three feathers and a dark subterminal band. IMMATURE Similar to adult female; immature males gradually acquire adult's head coloration.
Dimensions Length: 3 1/2-4" (9-10 cm)
Habitat Common and widespread within its restricted west coast range. Resident year-round in many parts, especially in coastal districts, but often found at higher altitudes, and further inland, during breeding season than in winter. Favors deserts, scrub-covered slopes, urban parks, and gardens.
Observation Tips Easiest to observe at feeders throughout the year, and in city parks and ornamental gardens in winter.
Range Western Canada, Northwest, Alaska, California, Texas, Southwest
Voice Utters a sharp tchik call.
Discussion Males are amazingly colorful when seen in the right light and are pugnacious when defending territory against rivals. Sexes are strikingly dissimilar.