This section is from the book "Commercial Gardening Vol3", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
Under this heading of Cherry Diseases and Pests, the birds that prey upon the ripe fruit must be included. The worst offenders in this respect are Blackbirds, Missel Thrushes, Song Thrushes, and Starlings. As soon as the cherries begin to colour, and long before they are fit to gather, these birds begin to eat the fruit, and keep-coming during all the hours of daylight.
The only effective means of keeping the birds away is to have a bird minder constantly in the orchard with a gun. In this way one man can usually keep the birds from an orchard from 8 to 10 ac. in extent.