Definitely not by chance
Semper psittaci sunt ebrii.
There you go!
Is there any reason why "Fortasse psittaci sunt ebrii" should not be accepted? I reported it just now (Nov 07 2019).
The way it was explained to me, "forte" is "by chance, it just happened to be" and "fortasse" is "it's possible that it could happen".
I think parrots are always drunk.
Never saw a drunk parrot before, but owner should be sued for allowing parrots to get drunk!
"forte psittacosaurus ebrii" should be accepted because you can drop conjugated forms of "esse" from the end of sentences