reply to post by Johnmike
Some interesting data I came across -- this is a link from FAA regarding wildlife strikes from the period 1990 -2007:
Wildlife strikes by aircraft
One area at the beginning has some entertaining stats:
Figure 1. Number of reported bird (N = 79,972) and terrestrial mammal
(N = 1,737) strikes to civil aircraft, USA, 1990–2007.
Additionally, 253 and 95 strikes involving bats and reptiles,
respectively, were reported for this 18-year period for a total of
82,057 strikes by all species of wildlife (see Table 1).
Bats........ reptiles....... mammals hmmmmmmmm. Gonna need much more gas
more:
Many populations of wildlife species commonly involved in strikes have increased
markedly in the last few decades and adapted to living in urban environments,
including airports. For example, from 1980 to 2006, the resident (non-migratory)
A Boeing 767 departing a Midwestern USA airport at night for Brazil struck a flock of
canvasback ducks at 800 feet AGL, 15 March 2007. Witnesses on the ground reported
flames shooting out of engine #1. The pilot returned aircraft to airport using 1 engine.
Subsequent inspection revealed that ducks were ingested in both engines. Engine #1 had
substantial damage to fan blades and compressor blades; the brakes were also damaged
due to a “heavy” landing. The following morning, the remains of 9 canvasbacks were
recovered near the departure end of the runway. Feathers removed from the engines and
sent to Smithsonian Institution Feather Lab also were identified as canvasback.
viii
Canada goose population in the USA and Canada increased at a mean rate of 7.3 percent per year. Other species showing significant mean annual rates of
increase included bald eagles (5.0 percent); wild
turkeys (13.0 percent); turkey vultures (2.3 percent), American white pelicans (4.3 percent) double-crested cormorants (4.9 percent), and sandhill
cranes (4.7 percent) (Sauer et al. 2007). Thirteen of the 14 bird
species in North America with mean body masses greater than 8 lbs have shown significant population increases over the past three decades (Dolbeer and
Eschenfelder 2003). The white-tailed deer population increased from a low of about 350,000 in 1900 to over 17 million in the
past decade.
I have eaten dozens of geese in my life. They're quite tasty, as I'm sure you know. My point is, why gas them? Why just piss their lives away
for nothing? My second point is, it's far from just Canadian Geese that are the problem for aircraft. D'you know what the most common bird that
made in on the FAA strike list is? Yep. Ducks. [edit to add: my bad, I read the chart wrong, it was gulls #1, @ 20% followed by pidgeons,
followed by raptors, and then waterfowl. Ducks were #1 in the waterfowl category.]
LOT more gas.
[edit on 12/6/09 by argentus]