G'day
Canuckbirdstrike
You might be interested in some research in Australia that was published in the last 6 months or so. I did not see the whole story on the news and thus my information is sketchy.
As best I can recall, the researcher, attached to one of the universities in Brisbane I think, has determined that bird strikes at aerodromes can be reduced by a sginifficant margin, by allowing the grassed areas surrounding runways and taxiways to grow to an "ideal" length, instead of keeping it mowed short as is the usual practice.
It seems that research has shown that short grass attracts insect feeding birds. Grass that is too long will harbour too many ground dwelling mammals/rodents and the like and thus attract birds of prey. The ideal length is some where in the middle, such that insect feeders can't get at the bugs, and the small animals find no cover, so the birds of prey aren't attracted.
This link will give you links to the various QLD universities.