Видео с ютуба Crow Vending Machine

Crow uses a vending machine #3 “Crow box” “Crowkit.com"

Official Crowbox Introduction Video

Magpie trade bottle-caps for food

CROW VENDING MACHINE #1 - By Steve Joy 2011

These Rooks Are Beating the System to Get Free Food

Crows trained to pick up cigarette butts in Sweden

Wild Crows Pick Up Litter for Food — Sweden’s Brilliant Idea

Crow Surprises Japanese Commuters By Attempting To Buy Train Ticket From A Machine

Crow Solves An 8 Step Puzzle To Get Food. Incredible!

CROW VENDING MACHINE #2 By: Steve Joy

How Smart Are Crows? | ScienceTake | The New York Times

GISH Item 104 Crow Snack Machine

Gift giving crows - World's Weirdest Events: Episode 5 - BBC

Are crows the ultimate problem solvers? - Inside the Animal Mind: Episode 2 - BBC

Crow Vending Machine

Joshua Klein: The intelligence of crows

Wild crows trained to pick up cigarette butts in Swedish street cleaning project

How To Befriend A Crow

Crow steals woman’s cash from vending machine

joshua klein: crows are so much smarter than we think

Rare crow shows a talent for tool use

Crow shapes paper tool to activate a vending machine

The crows trained to clean up cigarette butts

Crows Troll Cats, Dogs, Rats And Even Snakes...