State animal welfare officials said many of the 75 dogs and more than 20 birds removed from a Wilton home last week were living in unsanitary conditions and were sick. Liam Hughes, animal welfare program director, told the Sun Journal Thursday that the investigation is open. The resident has not been charged. Court records indicate that a majority of the dogs were deemed thin or emaciated. Some had dental disease, hair loss, scabbing from chronic flea infestations, overgrown toenails, ear and eye infections, and long hair matted with feces.