Tern
teal
chat
Lorikeet Lovebird Lapwing Lark Lyrebird
Tern
Tutu, tofu, thou
drum starts t has 5 letters
Teal
The opposite of "mean" is "nice." Perhaps the "t" is incorrect.
It's not 4 letters - treif
Stork may be the bird you are seeking.
Tern
at&t