RULE: Ruddy Duck (Male)

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

IF
In FLIGHT did the bird display a LIGHT WING STRIPE or PATCH = {No} OR {Unknown} AND
What colour was the SIDE = {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Unknown} AND
What colour was the BACK = {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Unknown} AND
What colour was the BREAST = {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Brown, or chestnut (reddish-brown)} OR {Unknown} AND
What colour was the BILL = {Blue} OR {Unknown} AND
<What SHAPE was the BILL> = {Flattened} OR {Unknown} AND
<What LENGTH was the BILL> = {Medium} OR {Long} OR {Unknown} AND
What FACIAL or HEAD features were noted if any = {Light area near or around the eye} OR {Light area up the side of the neck or head} OR {NONE or a PLAIN unmarked FACE} OR {Unknown} AND
What colour were the EYES = {Red, orange or rusty} OR {Brown or blackish brown} OR {Black or dark gray} OR {Unknown} AND
What was the predominant colour of the HEAD = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
<How BIG was the bird> = {Pigeon-sized} OR {Crow-sized} AND
<What TYPE of bird was seen> = {Duck or Goose-like} AND
WHEN was the bird seen = {Spring} OR {Summer} OR {Fall}
THEN
Ruddy Duck (Confidence: 5)