Cracked duck beak

[Iownmuscovies]

i have 2 muscovies and one is 6 months old and the other is 4 months old. They’re slightly getting along but can’t stay together or they’ll fight dangerously. I noticed a little crack or a little piece of the beak missing on my 4 month old. Yesterday the 6 month old bit the 4 months old beak really hard, could that be the reason? There isn’t any blood and she isn’t acting different

 

[chickens really]

Nothing to worry about..