Adverse possession in Texas is controlled by statutes passed by the state legislature, but also by the courts. Importantly, Texas places the burden of proof to establish a claim of adverse possession on the trespasser.
The European starling may fletch only after 21 to 23 days, while a chimney swift may take 28 to 30 days to leave its nest. Some birds, such as the kildeer, leave the nest within hours of hatching and become independent after 20 to 31 days. Perhaps the slowest bird to learn to fly is the rock pigeon. If the egg is laid in midwinter, the baby can take 45 days to fletch.
Nests are for chicks to hatch and grow up in. By the end of the season the nests full of bird poo, spilled food, and sometimes tragically, a dead chick, are simply abandoned. For birds, sleep is all about safety and warmth. If they are a smallish songbird they won't sleep on the ground because a cat will get them, and they won't sleep on an exposed branch because an owl will get them.