Help!! Chickens dying with no apparent cause!!

[Paulad]

I have found 2 of my hens dead in their coop this week. They were both very health and happy, what could possibly be happening??

 

[Hei 20]

I have found 2 of my hens dead in their coop this week. They were both very health and happy, what could possibly be happening??

I'm so sorry for your loss.

 

[Weeg]

What is the temp where you are? Climate? Did you insect the body for any possible bite marks from snakes/spiders? Could your feed have been moldy, or could they have gotten into anything poisonous or toxic? How old were they? Sorry for your loss, do you have any additional info that would help us decipher this?

 

[featherhead007]

very sorry. (Think like a chicken, and look around the coop and run, for stuff you can eat, or dangers around you)

 

[igorsMistress]

I’m so sorry for your losses. I too would look at something they’re eating or bite marks on the bodies if no other symptoms were present. If there are no physical indicators then the only way to know for sure is to send for necropsy. If you do that then you can’t freeze the body, put it on ice or the fridge. Here’s a list of labs by state
https://heritageacresmarket.com/poultry-necropsy-labs/

 

[MixedFlock23]

The one time I had a sudden death it was from biting midges. The midges came out of no where (June 2019 and Sept 2020), stayed for a week or so and then left again as quick as the came. If I hadn't gone into the coop each night and noticed the teeny blood suckers flying around the ceiling, I likely would have no idea what killed Moana. The midges were plaguing the coop for a few days before Moana died and I had fans and glue strips and tried getting them to leave but they are teeny and I failed.
They lodged in the respiratory tract of one of my hens and Moana died in front of us. When we found her she was lying on the coop floor that morning. We brought her outside and tried helping her, but she flapped and then went limp and died within moments. She was laying and happy and healthy up to that point. I went on to read later that day that certain birds can have allergic reactions to bug bites (and die), others have the midges (or other teeny gnat like bugs) clog their nostrils (and die), and other chickens have died from blood sucking pests (like midges, lice, mites, etc) making them anemic.
So maybe look for teeny insects in the coop (flying or crawling--I think mites only come out of the woodwork at night) and look for lice on your birds.

I'm so sorry for your losses.