CHICAGO (CBS) — A disturbing discovery of dead birds by a house painter prompted authorities to investigate a case of animal hoarding in Aurora.

When a hazardous materials team entered the home in the 200 block of Shadybook Lane on Thursday, they found dozens of birds, both dead and alive, and piles of garbage inside.

The type of birds included finches, canaries, parakeets, conures and cockatiels, Aurora city spokesman Dan Ferrelli said.

The property was deemed unfit for habitation.

Aurora Animal Control has made arrangements to have the birds checked by a veterinarian and transferred to a bird rescue once they are removed from the home, officials said.

A private contractor specializing in these types of cleanups is also working with the city.

The 57-year-old male homeowner has been cooperative with animal control and inspections officials.

No charges have been filed as the investigation continues.