Animal welfare organisations speak out against German outdoor cat ban Cat owners in the German town of Walldorf have been ordered this week to keep their pets indoors until the end of August to protect a rare bird during its breeding season. The decree is designed to help save the crested lark, which makes its nest on the ground and is therefore easy prey for feline hunters. The bird’s population in Western Europe has declined sharply in recent decades. Although it is listed as a species of least concern in Europe by the International Union for Conservation of Nature (IUCN). "Among other things, the survival of the species depends on every single chick," authorities in Walldorf said. The rule applies to all cats in the southern part of the town and will be repeated for the next three years from April to August. Owners risk a fine of €500 if their cat is found roaming outside and could be slapped with a penalty of up to €50,000 if their pet injures or kills a crested lark.