Found dead
Im thinking of black kite but its tail feathers are too barred for this one
https://www.featherbase.info/es/species/Milvus/migrans
Maybe european honey buzzard?
-Size 23cm-
Not in the best shape, probably from a very old kill site.. Still a nice find though!
Deceased. Not much left of this winged creature, except feathers and a partial wing. I'm guessing Passeriformes by the size of the feathers but not sure.