if i want to feed love birds, i must buy two love birds?

Yes indeed. When you want to have lovebirds as pet always start with a pair. They cannot live without a partner or a company of their own kind. Unlike other bird species, love birds always look for their mate or other of their own breed. Whether they are both male or female it doesn't matter because they will survive, they will not multiply though. Hence, they are called love birds simply because they can't live alone or apart from their own kind.

I think it must always be in pairs! Years ago I have lovebirds and one night I forgot to place it inside the house and when I woke up they are gone! Bad! I cried really since it was a gift and I love them.

It is best to buy two birds. They really need a mate to cuddle with and get adequate attention. I would never ever put 3 love birds in a cage together because the two stronger one will gang up onthe weaker one and kill it.