The bird bites the approaching hand.
The bird bites hard and/or attacks and releases continuously.
The bird struggles on being pulled out and resists extraction.
Unreactive (0)
The bird does not react to the entering hand, does not try to escape.
The head or beak of the bird can be grabbed with little to no reaction
from the bird.
The bird does not resist extraction.
NA
The bird cannot be scored since it does not satisfy the initial
assumptions and/or the conditions for classification.