Patent ID: 8434425

Claim:
A squirrel resistant bird feeder comprising: a seed container; a seed tray mounted below said seed container; a shroud enclosing said seed container and said seed tray; at least one feed opening in a lower portion of said shroud; a cover member extending over said shroud and being non removably secured thereto; a central tube extending between said seed tray to an upper portion of said seed container; a center post within said central tube, said center post having a first end secured to said seed tray, said center post having a second end extending through said cover member; and a plunger comprising an upper plunger portion and a lower plunger portion, said upper plunger portion and said lower plunger portion being screwthreadedly engaged, a spring member mounted about said center post within said central tube, a first end of said spring member biasing said seed tray and a second end of said seed member biasing said lower plunger portion.