RULE: Willow Ptarmigan

<Question>
Match
{Variable}
Direct Choice
{Variable}
Infered Choice

IF
What colour were the WINGS = {White, or pale (grayish-white)} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the TAIL = {Black, purple, or dark} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the BREAST = {White, or pale (grayish-white)} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
<What SHAPE was the BILL> = {Conical and thick} OR {Hooked} OR {Downcurved} OR {Unknown} AND
<What LENGTH was the BILL> = {Very short} OR {Short} OR {Unknown} AND
How BIG was the bird = {Pigeon-sized} OR {Crow-sized} OR {Goose-sized} AND
<What TYPE of bird was seen> = {Chicken-like ground bird}
THEN
Willow Ptarmigan (Confidence: 1)