[EBB Sightings] Re: Selasphorus Hummingbirds in Hayward

(Sorry about the previous, incomplete post. My fingers hit "enter" rather than "shift".)

I received a helpful email from a naturalist w/ re: to the timing of Rufous HB's in the Bay Area. I learned they're not supposed to be here this early. So, I asked him this question after researching & learning more about Selasphorus migration habits at Bird of North America Online. BNA states that Rufous HB's have arrived as early as Feb. 26 in Washington State. Is it in any way possible that if some have arrived at that date in Wash. that some may come thru the Bay 4 weeks earlier - i.e., about the time of my supposed sighting on 1/29?
If I had been aware of the timing problem I would have given details on field marks & behavior, asking for input. The male of the pair I saw was a stunning, almost all rufous HB. I was awed at the almost entirely rufous head & nape. There was very little green on the upper parts - maybe 10 to 15%, w/ most of that being on the upper back. I thought that was clearly a Rufous HB. Is there a possibility of an abberant plumaged Allen's having this much rufous, this little green on the upper parts?
The displaying male was a different bird. I called it a Rufous because of the mostly rufous rump & the display pattern. The downslope of his display dive was definitely angled, about 15 degrees or more I'd say. The male Selasphorus also started each flight downward at a different point. He would pick his next starting point several inches to a little more than a foot from the last starting point. He'd finish the sloped "J" pattern to the left (just like the letter) then begin again to the right of the previous starting point. Following the diagrams on p. 302 of Sibley's "complete" guide I called it a Rufous. A further note - it seemed to me that the display wasn't entirely in earnest. There were only about 4 dives & he stopped. I'll ask the same question of you experienced birders as I asked the naturalist. Do Selasphorus, specifically Rufous, make such "practice" displays on the way north during migration?
These birds were found Thurs., 1/29 in the bushes w/ red berries (toyon?) along the out of bounds path next to hole #1 of Sky West Golf Course just north of the intersection of West A St. & Hesperian Blvd in Hayward. This is the south side of the west half the golf course (front 9) w/ Hayward Airport just across the fences from there. The 2 males I describe were about 100 - 150 feet from each other. I won't be back in the area until Monday. If the birds might still be around & if someone has a burning interest to check this out tomorrow or Sunday I'd be interested in what might be found.
I am certainly not committed to my ID's. I just have these questions now based on what I saw. I'd appreciate any & all helpful comments either on list or privately.

Joe Devine
Modesto, Ca