Birds - Do they saves?

Do birds practice savings when food is abundant? What will you do if you can’t finish you food? Do you dispose the balance food away or do you keep it for later consumption?

I happened to witness this crow got this big piece of meat and was happily consuming it on the tree branch.Perhaps this piece of meat is too big to finish at one go. The crow keeps the balance meat on the branch nearby.Using the bill to push and squeeze the meet, the bird managed to compress the meat to just a small lump and stuck on the tree branch to prevent it from falling.

Also, read more about it on BESG site.