I just had a male Rose-breasted Grosbeak at my feeders. One was also here on 24 May, and two were here all day on 25 May. I have photos of all these individuals, and I'll be trying to figure out if today's bird is one that was here in May. My initial impression is that today's bird is a third individual.
Starting today, I've decided to measure syrup consumption from my hummingbird feeders over the next several days. From what I've read, a quart consumed per day indicates approximately 128 smallish hummingbirds.
David Waltman
6,000 feet; 1/2 way between Boulder & Lyons