The Almond Board of California released the September 2020 position report
Pollination prices are dependent upon the demand and supply of honey bees in a specific geographical region at a specific time.
The provision of bees for pollination of crop plants is a specialized
practice, not just a sideline of honey production. Beekeepers who supply bees
for pollination must learn the skills of management that are necessary for
success in this phase of beekeeping.
Wind pollinated flowers are usually small and inconspicuous (not showy). They do not have a scent or produce nectar. The anthers may produce a large number of pollen grains, while the stamens are generally long and stick up out of the flower. Their stigmas may be large and feathery to catch the pollen grains. Insects may visit them to collect pollen; there are some examples of flowers which are both wind and insect pollinated.