Why? Is it drunk?
No, it's deceitful.
No, it's both!
Why is it "psittaco" and not "psittacum"? Isn't it a 2nd declension noun in the accusative?
No. Appropinquare is an intransitive verb. You cannot use the accusative. The dative expresses the object, which is being approached.
Some unapproachable parrot, isn't it?