At the first waypoint you'll find an encrypted message. The message is not on or in the bird house but is very close to it. Follow the instructions on the message to the cache location. It is 1.8 miles from waypoint 1 to the cache location. At waypoint 1 you will be close to private property, but you do not need to look on private property (at least not past the sidewalk). The coordinates for the second waypoint may be slightly off, but it won't matter -- just use the force.
The first waypoint is available night or day, but the final cache location can only be accessed between the hours of:
Closed Monday
Tuesday-Friday 10a-6p
Saturday 10a-5p
Sunday 11a-5p
Please don't put any hints in your log entries - even encrypted. But speaking of encryption, don't forget the decryption key from this page and a pen or pencil.