hi there, yesterday i noticed that one of my chickens had a small white bump on her beak. its hard and not very big and a little white. im not sure how long she has had it but it would be less then a week. it hasnt grown or spread. and i have inspected her eyes and feet for other bumps but there is nothing. my other chicken also showed nothing of the sort. it isnt bothering her at all and she is behaving completely normal and laying regualy. should i just keep an eye on it? could it just be a scab or a wart or something?