We have 4 hummingbird feeders spaced 12-20 feet apart.  We find that
during the day, the hummers are quite territorial but just before
sunset, and to a lesser degree just after sunrise, they tolerate each
other's presence to a much greater degree, particularly in winter. 
We've had as many as 12 hummers on a feeder at once.  We keep warming
lights under or next to the feeders when the weather gets below
freezing.  Here's a link to a few photos and a couple of videos that
illustrate the behavior: https://www.flickr.com/photos/gene-s_photos/

Gene Beall
Sammamish, WA
gene.beall at gmail.com



On 1/1/20 9:59 PM, Carolyn Heberlein wrote:

> I have 5 hummingbird feeders.

> Because of the Anna's territoriality, I have one on each side of the

> house. They are the 12 ounce saucer style. The 5th is a jar style

> which holds 32 ounces (I never fill it). It has a small nightlight

> installed on on the base for when temps drop below 28 degrees. The

> light keeps the nectar from freezing.

>

>

>

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