Bird Milk. Like mammals, the young of some birds are fed on special secretions from a parent. Unlike mammals, however, both sexes produce it. The best known of these secretions is the "crop milk" that pigeons feed to squabs.
Yep, the first is mainly milk, egg whites and sugar. The second is pieces of pork meat put together by a cold pork broth that hardend like jello when cold
I can confirm
Pig cheese is salty but tasty
and Bear cheese is like liquid cheese
No birbs have been milked here
https://en.m.wikipedia.org/wiki/Head_cheese
Head cheese = pig cheese
http://www.internationallawoffice.com/Newsletters/Intellectual-Property/Hungary/Danubia-Patent-Law-Office-LLC/Big-bear-trumps-little-bear-in-cheese-trademark-dispute#
"Leche asada" y "queso de cabeza"
but not on bread but like one bite of it and then one bite of bread