Yes, it is nearly impossible to tell an Allen's Hummingbird from a Rufous Hummingbird. I've been advised to say it's a Selasphorus and then I can't go wrong. Paul Brewer photographed one of these beauties feeding on a Pride of Madera bush at his Gualala home.
Hummingbirds - they are living jewels that visit our gardens. Thanks to Paul for allowing me to share his exquisite photos with you here.