Tube feeders are
cylindrical in shape, usually from about 8" to 36"
in length and about 4" in diameter. The tube itself
is usually plastic but can be glass. The tube is
most often clear but white tubes are also
popular.
Tube feeders can be
designed to feed either sunflower/mixed seed or
Nyler®(thistle) and are usually called finch
feeders in the later case. They can be pole mounted
or hung from a tree limb, deck railing etc.
This tube feeder has a wire cage and large
seed reservoir.
A typical finch feeder.
Tube feeders are
somewhat more selective than hopper feeders as the
short perches tend to limit access from larger
species. Some tube feeders have a wire frame on the
outside to prevent squirrels and larger species of
birds (grackles, for example) from reaching the
seed ports. They are easy to clean and maintain.
