The invention relates to bird feeder, in particular to a simple bird feeder which comprises a pair of L-shaped supporting members, a clamp and a cross rod. The L-shaped supporting members are connected below the clamp, the other ends of the L-shaped supporting members are connected with the cross rod, and two ends of the cross rod are connected with one ends of the L-shaped supporting members. The simple bird feeder is simple in structure, food like bread needed by a bird is clamped through the clamp, and the bird can stand on the cross rod to eat; the simple bird feeder is convenient and sanitary, and influence on sanitation due to the fact that fragments of the food are scattered on the ground for the bird to eat can be avoided.