he answered her call

JAN did this bird call once in the apartment.  I would say it went something like "whipper-whill, whipper-will!"  

And out of nowhere, in came an answer to her song.  If I remember right it was "kwa-loo!"  

this could be JAN's future, sittin in a tree, k-i-s-s-i-n-g

Now I'm still a newbie at the bird call thing but if I'm correct, because of their fateful calls, Julie procured a mate for life!  My guess is he lives directly below us or below and to the left.  So now we just have to make sure it isn't that old guy.