[Maine-birds] Bluebird question

For the past two years we have had blue birds nesting in our nesting boxes. They have been successful with one clutch each year. This year it is the strangest thing to me, I have two males and a female that are supporting the box. The two males go in and feed as well as the female, or defend the area. I have watched Blue Jays come in and one male will go after the Bluejay while the other one comes in and sits by the box. Is this normal behavior to have two males could this be last year's clutch?
Thanks,
Deb Powers-SouthBerwick

Sent from my iPhone

--
Maine birds mailing list
maine-birds@googlegroups.com
http://groups.google.com/group/maine-birds
https://sites.google.com/site/birding207
---
You received this message because you are subscribed to the Google Groups "Maine birds" group.
To unsubscribe from this group and stop receiving emails from it, send an email to maine-birds+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/maine-birds/8FF1636D-AA89-4592-BD50-68DC48167CF2%40comcast.net.