[an_aparallel]

Seagulls, magpie and ibis (im not being fun or joking here) have evolved to exhibit cooperative traits and behaviours to get food, including tricking, diverting, cooperating and most annoying literally staunching people.

I was having a burrito on manly wharf a long while back, a seagull just lands on the table and death stares me...i felt uncomfortable and moved, because i know they will try and take my food off me!

[throwaway422432]

I haven't ever seen Brisbane's beloved bin chickens (ibis) cooperating, but they're pretty good at getting into any bin to scavenge food.

Cockatoos are worse and will flip the lid of a wheelie bin if in the mood. Crows will as well if you overfill and the lid is not shut properly.

[an_aparallel]

I saw an ibis and magpie work on opening a macdonalds bin, take out the black rubbish bag, tear it, splay its contents and fish for paper macdonalds bags!