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We can go to this location after absorbing Shrykull powers and getting BACK to RuptureFarms, but it's a bit destroyed... I suppose the creators wanted it to be the version of this place before being messed up  I think the reason for abandoning the place was 99 workers limit or something...
BTW. Should the birds fly away ONLY if you are NEAR them? : / |
Yes, the birds fly away usualy when you near them, but for some reason, it goes wherever you are. I dont think it the secret in return to rupture farms. If i'm correct, the entry was through that hole, but this area has a completly different layout. :s