Parshas shemini lists the nesher (vulture?) as non-kosher animal. But Ieshaiahu describes the future geulah connecting the tzadikim with neshirim (ישעיה מ:לא). Also, Sforno in parshas haazinu alludes this:
כַּאֲשֶׁר אֶתְפַּלֵּל עַל קִבּוּץ גָּלֻיּוֹת, בְּאָמְרִי "כַּנֶּשֶׁר יָעִיר קִנּוֹ" ,
(Moshe rabeinu) says: when I pray on regard Kibbutz Galuyos saying, "as a nesher that stirs up in its nest..."
It seems to carry a "negative connotation" in Shemini and a positive connotation in Sforno and Ieshaiahu. I feel like I'm missing something here.