We have Sydney a 7 month old female tiel for 2 months now and she loves me to death but hates my wife and daughter, she always wants me but runs away and bites other family members. We all had equal time training her, maybe I did a bit more but it's been very frustrating for us being that we got Sydney for my daughter. I tried backing off for a few days and letting my family tend to her but did not work. How can I get Sydney to love everyone equally ?
I would try getting your wife and daughter to feed Sydney treats like millet or sunflower seeds (or anything else she loves) and make sure they're the only people she gets those treats from. That would most probably make her like them better.