Abstract: A bird feeder and method of feeding wild birds are disclosed herein which thwarts squirrels, rodents, and other pests from accessing the bird feed. The bird feeder comprises a shutter mechanism which slides down a seed container to block access to the bird feed in an implementation. The shutter mechanism secures to the bottom of the seed container to maximize the containment volume of the feeder and to make cleaning the feeder easier. The shutter mechanism has adjustable spring force settings so that a user can set the spring force according to the type of predator. In an implementation, the shutter mechanism is rigged with a constant force spring which prevents partial deployment of the shutter.

Abstract: A carrying apparatus associated with drones and similar vehicles, and carrying a passenger or a load is provided. The carrying apparatus includes a center part having a predefined geometrical shape, a first lateral wall encircling a volume, wherein the first lateral wall begins in a manner encircling the center part and decreases towards a first end provided at a first direction and a second lateral wall, wherein the second lateral wall begins in the manner encircling the center part and decreases towards a second end provided at a second direction.

Abstract: The bird feeder with a lower seed catching tray comprises an upper feeder and a lower feeder. The top of the lower feeder may be coupled to the bottom of the upper feeder. The upper feeder may be stocked with bird seed. The upper feeder may be adapted to dispense the bird seed to one or more birds from a plurality of upper feeding stations located on an upper seed tube. The bird seed dropped by the one or more birds feeding at the upper feeder may be collected by an upper bowl of the upper feeder and may be funneled into the lower feeder where the bird seed may be dispensed a second time.