Now it's a 2nd young goose with what I see as Neurological Symptoms. First goose was a young Shetland ( from Holderreads hatch in mid April, 1 of 5). I have them in a mixed flock of ducks and one other goose(who is now having odd symptoms). I'd raised them on Flock raiser by Purina, then Dumors , (with some greens). Then I added a Oat/Alfalfa pellet 14%) mix (nothing else in it), Tucker Milling had (for horses), and some Dumor Scratch. (They get fed 2x a day using the wight formulas in Storeys guide . I started letting them out to free-range the back yard about 2 weeks ago. 4 or 5 days ago I found the young shetland upside down in the night pen.She couldn't walk and would flop around. (she had been fine the day and night before I believe. (although with 40+ birds I could miss something) I thought maybe Botulism or she ate some poison plant , or possibly I'd used some Glyphosalt ("Roundup ) on the horse arena a couple days earlier(opps). She also was trembling alot., I have been holding her and she eats and drinks and seemed to improve. This morning is iffy, she didn't seem very interested like the last 2 days in eating. could be timing too....? Goose #2 . I notice 2 days ago just wandering off alone when let out and not interested in eating the morning feed. I thought maybe she just wants grass.... Well that evening when put up , she again didn't seem interested in grabbing feed like everyone else, just off staring outside the pen. Yesterday I started watching her and she seemed to graze with the others. What I didn't notice is she didn't come in with the Mob at night , (it was dusk, and with so many I just missed her ) This morning I look out an she is wondering out the yard alone. So I caught her (and though she had a funny walk). Put her in with the others and fed them. Sthe didn't go for feed ,instead sort of stared outside the fence. Not normal, she did maybe look at the food once. Usually she is hogging the feed and inside one of the feeders!So I have put her in another pen with just flockraiser and green grass and water. We are in a prolonged dry spell, hasn't rained her in maybe a month, and we have had temps in the mid to upper 90's. I am beginning to wonder is it could be something like West Nile. Both are females, around 4-5 months old , one from Holdreads, as are all my ducks, and I have 4 adult geese I got from Metzger that are 2 years old.The Second goose is their only baby this year that hatched. The other 4 male Shetlands the same age seem healthy, eating like normal and behavior is normal.