Doesn't 2 make sense? If not, can you explain why?
2 is non-restricve clause, I explained to someone only 1 makes sense, but she argues 2's "the large parrot species" is a distinct concept, so the rest "reported to have..." is only additional information. I think this can change depending on context, but just considering this sentence, how can I determine?

1. The large parrot species reported to have the longest lifespan is cockatoo.
2. The large parrot species, reported to have the longest lifespan, is cockatoo.