A brief look at British fauna:
Chicken - Coward
Cow - Unpleasant lady
Dog - Ugly lady
Catty - Unpleasant, complaining
Pussy - Coward (also a specific kind of scarf worn by pupils at Winchester College)
Sheep - One who follows
Sheepish - Subservient
Fox - Pretty young lady
Fox - Decieve
Horse - Heroin
Stag - Engaged drunk
Crow - To boast
Rabbit - Talk constantly
Rat - Traitor
Squirrel - To hoard
Pig - Greedy person
Pigeon - ?
Duck actually derives from the verb to duck meaning to go under water. The Old English word was ened.
The lack of a meaning for pigeon bothers me. I want to go around calling people pigeons. I want to shout: "Stop pigeoning, you bloody pigeon." But I fear that I would be being more meaningless than usual.
Pigeon used to have several meanings: a young girl, a sweetheart, a coward, one who was swindled or possibly a combination of all four. Pigeon milk was "An imaginary article for which children are sent on a fool's errand" (OED). Letters sent by carrier pigeon were called pigeongrams. But these are all obselete so pigeon is now ripe for signification. Suggestions in the comments, please.
This from London Fields by Martin Amis:
At one point as I walked under a tree I felt the warm kiss of a voluptuous dewdrop on my crown. Gratefully I ran a hand through my hair - and what do I find? Birdshit. Pigeonshit. I'm feeling okay for once, I'm feeling medium cool, and a London pigeon goes and takes a dump on my head. It had this effect on me: despair. I swore and stumbled around, bedgraggled, helpless, the diet of a London pigeon being something that really doesn't bear thinking about. I mean what the digestive system of a London pigeon considers as waste...
Incidentally, Pidgin English is so called because pidgin was, apparently, how the Chinese used to pronounce business.
Yet another website posting photographs of pussies