I have lots of hummingbirds at the feeder but only females.. The number has grown dramatically over the summer, which tells me they are raising young. Where's the male?

They are probably at the bar!! Raising youngsers are hard on the male! I have just started to see a male this week.

I see three at my feeder, how do you tell the difference? The three that I see pretty much look the same except one seems more agressive and keeps the other two away from the feeder. I have considered putting up another feeder.

They are all getting ready to migrate this time of the year, lots of activity as they are filling up for the long trip south. I will have to pay attention tomorrow and see if the males are gone here to, also a Warren County resident. Lace

we have the ruby throated here, red on the neck, the females dont have the red on the necks.

http://www.hiltonpond.org/articlehum...ationmain.html

the article above in from South Carolina, so I would think they are getting ready or already leaving NY & NJ areas.

picture of male and female ruby throated
http://www.hummingbirds.net/rubythroated.html

the females of the ruby throat have a blunt tail with the bottom side feathers in white.

do you know the more feeders you put up the more birds you will get?

Had a few a couple of weeks ago, I too am only seeing the females.