Patent ID: 7258075

Claim:
A collapsible, multi-chamber bird feeder, comprising: a first chamber enclosing a first volume, the first chamber having at least one feed port in fluid communication with the first volume; a second chamber enclosing a second volume, the second chamber having at least one feed port in fluid communication with the second volume, the first chamber being extensibly carried in the second chamber; and a fill tube located within the first volume, the fill tube extending from an outer portion of the first volume and being in fluid communication with the second volume for allowing material to pass through the fill tube and into the second volume; wherein the first chamber is movable between a retracted position, in which at least a portion of the first chamber is located within the second chamber, and an extended position, in which the first chamber substantially extends from the second chamber; and wherein the first and second volumes are separated to prevent fluid communication between the volumes.