Have a hummer hanging around out feeder since last weekend. Thought is
was just another female Anna's but something didn't seem right, a white
patch on side.  Looks very similar to female image on
birdsoftheworld.org for Costa's except ours has a throat patch.

Opinions?

Link to image:

                     https://photos.app.goo.gl/FWp2ZDe1PeqoCNrw7