Introducing new Red Rump when mate has died
I had a pair of Red Rump parakeets, the male died and I would like to introduce a new male to my girl. All of these birds are "older" (age unknown but at least 5-7+ years old), and my original pair never displayed any "affection" (feeding, preening) towards each other. I brought home the new male and instantly they sang & danced to each other. How long should I wait to introduce them, I am not quarantining them (don't yell at me). Neither are tame, and both are rescues. Is their sideways shuffle dance "affectionate" or "defensive"?