"a sweep of the runway collected more than 20 bird carcasses"
I spied a couple of news reports of a mass bird-strike at DFW Airport today and the above quote jumped out at me. The procedure for checking the runway following a bird-strike is not required under Australian regulations and is not always included in the aerodrome manual - despite being a really, very, really good idea. In this instance there were no injuries although there was some damage to the aircraft. But the concern is not the struck aircraft, it's what's left on the runway. Twenty dead birds present an attractive meal for a predator or scavenger (including domestic animals) and any aircraft debris is also a hazard to other aircraft.