 
Tubular feeders are
long, slender containers that usually are
suspended from a tree or put on a pole. Some
models attach two or three tubes together,
permitting more birds to feed and several types
of seed to be offered at the same time. Tubes
with perches above the feeding holes (upside down
finch feeders) are designed particularly for the
acrobatic goldfinches that have no problem eating
head down. Small perches and portals make it
difficult for larger birds to use these feeders,
which can be an advantage if you're trying to be
selective. |