The birds kept flying to the south, and the light was still dim, so I didn't end up with sharp pictures — but they're good enough for an interesting record!
Can you tell what species they are?
Here's another view (below). I can also share that they had a distinctive flight style — long glides alternating with a short series of relatively strong wing beats.
These are ibis, and likely White-faced Ibis (Plegadis chihi). Scan carefully and note the long outstretched neck, long trailing legs, and long down-curved bill.
Did you count how many were in the flock? It's easiest to use the first picture. (My answer is below the next image.)
I counted 16 ibis — that's a relatively high number for this area. White-faced Ibis don't nest here. It's more likely these individuals were passing through on their way to breeding grounds further north.