My Pekin Duck is limping

[SEPMJR09]

They are

 

[SEPMJR09]

Hey! I have a question and wanna see if y’all can help me out. So both my Pekín’s have a curl at the tail. According to google states they are males. They bob their heads very heavy at each other and also also go at each other’s necks almost like hugging maybe (idk how to describe it ) and they hold onto each other with their beaks and they chase each other. One (the larger one ) fluffs it’s feathers and puffs up and takes it wings and I guess flaps them in the water or on the ground sorta thing - any insite on this or is it just 2 males being males or maybe one a girl and they both have curls (do girls get curls at the tail ) these are the curl at the end. It’s been several days now more so heavy head bobbing staying VERY close together (more so than they already do) and constantly showing signs of whatever this is. They are about 14-15 weeks old I believe.
Thanks

 

[SEPMJR09]

They have a quite quack it’s not very loud at all it’s really cute actually.

BTW- it’s leg is 100% better. I kept them in their run for about 2 weeks and it’s perfect

 

[Miss Lydia]

Awesome about the leg!! Looks like 2 drakes.

 

[SEPMJR09]

Perfect! So no babies . I didn’t want any so that’s great. Is that behavior normal for the males? I just have them two, no other ducks.

 

[Miss Lydia]

Very normal. You may even see fighting ( hope not) but if you do and it gets crazy just separate them with fencing so they can still see each other .