Hi looking into birds throat it looks clear no signs of any thing...when feeling under the beak can feel a lump in top part of throat,,,feels like corn stuck....i parted the feathers and it looks like a lump of maze,,,as you can just see it through skin...the bird dont seem to be able to eat...but can still drink ..it did try to eat but shakes it head and throws corn out...well ive go the canker treatment going at the moment...hopeing it is that...