feathers

[Red-Devil]

i have a 05 female peregrine that had and has splitts all the way along the inside of the shafts ,even freshley moulted shafts have splitts 4,maybe 5 inches long has any one any ideas of whats wrong with the bird , i will get lee to put up some pics

[Coedhirion]

Are these on all feathers, tail, wing etc. fret marks from stress go across and I am sure if it was caused from damage where the bird is kept, you would know. I am not a vet and pretty thick realy, but is it possiblethat it is due to your climate or a deficiency in some form. Like heat may dry the feathers, or lack of "oil" in the feather???

[Red-Devil]

Are these on all feathers, tail, wing etc. fret marks from stress go across and I am sure if it was caused from damage where the bird is kept, you would know. I am not a vet and pretty thick realy, but is it possiblethat it is due to your climate or a deficiency in some form. Like heat may dry the feathers, or lack of "oil" in the feather???
no sorry no of them ,its the shaft thats splitts ,and even the new feathers are splitt,primarys,secondrys ,and tail feathers all have large splitts running down them ,when finnish is about i will send him pics to post rd

[Finnish]

Ok here are the pic's....

[Merger]

The inside of a feather has an indentation, but not usally as severe as this, the quill is mostly calcium so could be a deficency, otherwise if previous feathers the same, could be abnormal each season, depending on how deep, could also be quite weak, suggest cut feathers in half for closer look internally at structure.