A suspension system for a bird feeder or the like includes a flexible line or cable of predetermined length, a swivel connector at one end for attachment to a bird feeder or the like and an anchor at the other end thereof, and a pair of support devices for supporting the flexible cable at spaced locations, the support devices each including a pulley, a hook adapted to be placed over a tree limb and a socket for releasable receipt of an end of a pole by which the support devices may be hoisted to an overhead tree limb without the use of a ladder.

A bird feeding assembly includes a tubular member that has a top end and a bottom end. A rod extends through the tubular member. The rod has a pair of outer ends extending in opposite directions with respect to the rod. A pair of loops is attached to the rod. A first cord has a first end positioned within the tubular member and a second end attached to and extending downwardly from the rod. A second cord has a first end positioned within the tubular member and a second end attached to and extending downwardly from the rod. Each of a pair of bird feeders is attached to one of the second ends of the first and second cords. A pulley apparatus is coupled to each of the cords and is adapted for selectively lifting or lowering the bird feeders with respect to the rod.

An improved plastic colony bird house with nesting compartments, especially for purple martins. This invention is made of two main sections: a round outer shell that rotates about and is easily removed from the second main section, an inner core of pie shaped nesting compartments. The removal of the outer shell facilitates the easy cleaning of the nesting compartments with a simple garden hose at the end of the nesting season. The outer shell has multiple ingress and egress holes of sufficient size to allow easy access. The vertical wall dividers, separating each nesting compartment, feature a short horizontal plane making a tee structure. The outer shell can be rotated to the closed position, which places the tee structure at each entrance hole, thus blocking the entrance to the nesting compartments to unwanted species of birds. When the first migrating purple martins are seen in the area, the outer shell can be rotated to the open position to allow entrance to the nesting compartments. This invention features an improved, segmented pole using pressurized air from an air compressor to raise and lower the bird house. Air pressure is superior to the use of water pressure as the air will not freeze in cold climates. In addition, the use of tight fitting reducing collars and a small hole at the air pressure intake site, allows for the controlled descent of the birdhouse at the end of the season to keep from causing injury to the person maintaining the bird house.

The purple martin birdhouse assembly of the present invention includes a plurality of gourds suspended from an array of tubular members. The array is connected by tubular radial arms, from which gourds may also, optionally, be suspended to a central sleeve which is slidably mounted on a pole. The entire array attached to the sleeve may be raised and lowered by a winch and associated pulleys. Undesired rotation of the sleeve, according to a preferred embodiment, is prevented by means of solid, tubular members mounted on the pole which allow for upward movement of the central sleeve but which project downwardly into position adjacent to the radial arms to prevent both clockwise and counterclockwise rotation.

A modular birdhouse in accordance with the present invention includes a support pole, a collar, at least one wire form and at least one nest module. First, the collar is slidably connected to the pole. The wire form has a square shape, and the ends of the wire form are upturned and inserted into corresponding openings in the collar. The collar includes coordinated flanges with fasteners that fix the wire forms to the collar. Two or more collars can be interconnected in a stacked manner to create tiers of nest modules. Each nest module has a plurality of connector slots. For attachment, the nest module is positioned within the square shape of the wire form and then rotated until the connector slots of the nest module engage the wire form. A porch structure interconnects the wire form to the nest module to prevent further rotation and disengagement of the nest module. Nest modules may be added or removed from the wire forms as desired by the operator and without the use of tools and/or implements.