Re: But how do they spread fires?
"But rooks are now using traffic & traffic lights to crack nuts and snails."
And I've personally seen a pigeon catch a suburban train, thus avoiding a long flight over a significantly high hill.
The pigeon appeared to know a few important things: - park yourself under a seat to avoid attracting the attention of the ticket collector, there is a long tunnel on this line so don't panic when it suddenly gets very dark and noisy, and, most important, it knew exactly which station it wanted to get off at - it didn't get out at any stops before the tunnel and it didn't get out until the second or third stop after the tunnel - even then, it wasn't in any hurry, it just waited until all the humans had cleared the door and then just walked out.
A remarkable adaption to city life, really.