I have five ducks (2 black swedish, and 3 welsh harlequins, all female) one of my welsh harlequins is haveing seziures. she will be walking around like normal and then run and fall on her back or side. when she falls she sticks her wings out and they apper to go into paralysis. when this happens it looks like she is dead or unconsious. She will lay there on her side or back for a minute or two and the brings her head up like she is regaining consiousness. she will then get up on her feet and stumble a little but after that she behaves like normal. she is eating and drinking like normal as well. i just noticed this behavior this morning. however throughout the past few weeks i noticed she would have what looked like muscle spasms in her leg. it did not seem serious and she would just ignore it and continue with whatever she was doing. she is around 40 days old and she is the only one out of the five that shows this behavior. have any idea what could be wrong with her or what i should do? please let me know.