agressive

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.