agressive

hiya my cockatiel is around 1 and half years old and used to be very friendly and was bonded to me but he's suddenly became almost aggressive? he's only aggressive to me though. he will fly at me all the time and will try to bite me. all I have to do is walk into the room or even just look at...

Hello All, So for the past few days I have been noticing that my four month old cockatiel has been very protective of her food bowl. When I try to re fill it in the morning she hisses at me but than lets me re fill it. Dose she see it as a nest or is it because she is entering her molt and...

Hi guys, I have heard that in comparison to other parrot species tiels tend to be more stable and less hormonal/aggressive during breeding seasons. Is this true? If they do tend to exhibit aggressive/territorial behavior during this time is it temporal? Thanks.