Ornithophily or bird pollination is the pollination of flowering plants by
birds. This co-evolutionary association is derived from
insect pollination. The
association involves several distinctive plant adaptations forming a “pollination
syndrome”. The plants typically have colorful, often red, flowers with long tubular
structures holding ample nectar and orientations of the stamen and stigma that
ensure contact with the pollinator. Birds involved in ornithophily tend to be
specialist nectar with brushy
tongues, long bills, capable of hovering flight or are light enough to perch on
the
flower structures.
Evolutionary shifts to bird pollination have occurred independently in many lineages of flowering
plants. This shift affects many floral features, particularly those responsible
for the attraction of birds, deterrence of illegitimate flower visitors
(particularly bees), protection from vigorous foraging by birds, and accurate
placement of pollen on bird's bodies.
Pollination,
whereby pollen grains (male) are transferred to the ovule (female) of a plant,
is an irreplaceable step in the reproduction of seed plants.
A ruby-throated hummingbird sipping nectar from
scarlet beebalm
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