·Large flocks of birds are easier to scare than small ones.
·Starlings will fly 25 km from a roosting site to feed, flying at up to 70 km/hr in short bursts.
·Bird damage patterns can vary considerably from year to year and from farm to farm.
·Bird damage is usually localized and not uniformly distributed throughout an area.
·Birds are opportunists, feeding on whatever is available.
·It is difficult to break birds of the habit of feeding in a particular area once they are established.
·Birds establish their home territory in late April and May and often remain in the area until the crop ripens.
·Crops near roosting or nesting areas, woodlots or ponds are more vulnerable than those in the open.
·Birds acclimate quickly to uniform movements or noise patterns.
·Different species of birds respond differently to various repellent methods.
·Birds can be diverted to other nearby feeding areas.
·Birds will endure significant hardship to feed.
·Birds often follow the same flight patterns to feed.
·Birds usually feed early in the morning around sunrise and late in the afternoon around sunset.
·Birds like to drink water when they feed.
·Some birds travel in migratory flocks, while others fly in from local woods.
·Birds feeding on your crop will attract other birds, compounding the problem.
·The sweeter and earlier the grape or cherry variety, the more attractive it is to the birds.
·Even if crops are protected with netting, birds may perch on the nets and feed through them or find small holes.