RULE: Mallard (Male)

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

IF
What color was the UNDERSURFACE of the wing as seen in flight = {Light} OR {Unknown} AND
In FLIGHT did the bird display a LIGHT WING STRIPE or PATCH = {Yes} OR {Unknown} AND
What colour were the LEGS or FEET = {Orange, buff (orange-yellow), or tan} OR {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Unknown} AND
What colour was the SIDE = {White, or pale (grayish-white)} OR {Gray, or blue-gray} OR {Unknown} AND
<What colour was the BACK> = {White, or pale (grayish-white)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {Orange, buff (orange-yellow), or tan} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Unknown} AND
What colour was the THROAT = {Green} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BILL = {White, or pale (grayish-white)} OR {Yellow} OR {Olive (yellowish-green)} OR {Unknown} AND
<What SHAPE was the BILL> = {Flattened} OR {Unknown} AND
<What LENGTH was the BILL> = {Medium} OR {Long} OR {Unknown} AND
What was the predominant colour of the HEAD = {Green} OR {Black, purple, or dark} OR {Unknown} AND
<How BIG was the bird> = {Crow-sized} OR {Goose-sized} AND
<What TYPE of bird was seen> = {Duck or Goose-like}
THEN
Mallard (Confidence: 9)