HARO
Pondcrastinator
- Joined
- Jun 30, 2011
- Messages
- 5,474
- Reaction score
- 6,324
- Location
- Ontario, Canada
- Hardiness Zone
- 5b
- Country
I would really be worried about anything leaching out of the aluminum. We already know that it's not good for humans, and going by size, I doubt it would take much to harm a hummingbird! As for the 'greeting', the males seem to do that even if the feeders are full. Females return about a week after the males (at least around here), and seldom do that.
John
John