I lost a silver sebright at the end of January, his only visual symptom was feather on his chest and scabbing, he continued acting fine up until he passed one night. The next bird was a bantam EE, she had no visual signs or symptoms of anything being wrong. She passed in either Feb or March, I can't remember exactly. Now my bantam EE is showing signs of Marek's or possible viatimin deficiency. He has one leg with curled toes, no balance, and is very quiet and sick. It came on suddenly two days ago. He is still eating and drinking. I'm nervous that because of these 3 birds it may be Marek's?? Coincidences? Had a video of the rooster who is sick now, but it won't let me upload it?