Re: mystery warbler at Middle Lake, GGP, Oct. 12
How about Orange-crowned Warbler?
On Fri, 12 Oct 2018 21:57:35 +0000 (UTC), "Lee-Hong Chang via Groups.Io"
Hi sfbirders,favorite spot and headed south towards Old Speedway Meadow. We then lost sight of the bird. After some discussion, Terry Watson brought up the possibility that this bird was a first year Black-throated Blue Warbler. Alan Hopkins showed up and we showed him the photos. He also suggested that the ID of the bird was BTBW. For more
details, please see my ebird report at the following link.
Joseph Morlan, Pacifica, CA