Parts of a bird head
Legend :

1 Crest
2 Ear coverts
3 Moustachial stripe
4 Submoustachial stripe
5 Mesial stripe
6 Supraorbital ridge
7 Mandible
8 Maxilla
9 Culmen
10 Cere
11 Lore
12 Supercilium
Own work
L. Shyamal