Kestrels kissing

Birds show affection almost the same way as human do: they kiss each other. But not all of the kisses similar to human's. Sometimes when birds kiss they share leftovers of the food from their crop. It's a whole new level of kissing, isn't it? The most deep kiss you've ever seen XD Anyways, it's disgusting, so let's just think that these two kestrels have a normal kiss, when they just touch beaks.
Painting from imagination. Oil on canvas, 50x70 cm.