RULE: Black-backed Woodpecker (Male)

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

IF
Were the SIDES STREAKED, SPOTTED or BARRED = {Yes} OR {Unknown} AND
What colour PATTERN if any was on the BACK = {Uniform} OR {Unknown} AND
What colour was the BACK = {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {White, or pale (grayish-white)} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Unknown} AND
<What SHAPE was the BILL> = {Straight and slender} OR {Straight and thick} OR {Unknown} AND
<What LENGTH was the BILL> = {Medium} OR {Long} OR {Very long} OR {Unknown} AND
What colour were the CHEEKS = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the TOP of HEAD = {Yellow} AND
<How BIG was the bird> = {Sparrow-sized} OR {Robin-sized} AND
<What TYPE of bird was seen> = {Woodpecker or Tree-clinging bird} AND
<WHERE was the bird seen> = {Northeastern Canada or United States} OR {Northwestern Canada or United States}
THEN
Black-backed Woodpecker (Confidence: 4)