What are the ramifications of "Vetiharo"?
Seforno: The Kohen purifies him from P'ri'ah and P'rimah. 1
Permitting him to wear clothes that are not torn and to cut his hair.
What happens to the dead bird
Targum Yonasan: The Kohen buries the dead bird in the presence of the 'Metzora'. 1
Since it is Asur be'Hana'ah (See Peirush Yonasan).
What is the point of sending away one of the birds live?
Targum Yonasan: In the event that the Metzora does not do Teshuvah and the Tzara'as is destined to return, the bird will return to him in his house on that day. 1
See also Ba'al ha'Turim.
May the live bird be eaten?