RULE: White-breasted Nuthatch

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

IF
What SIZE was the TAIL = {Very short} OR {Short} OR {Medium} AND
What colour was the BACK = {Blue} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {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 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 {Conical and slender} OR {Upcurved} OR {Unknown} AND
<What LENGTH was the BILL> = {Short} OR {Medium} OR {Long} AND
What colour were the CHEEKS = {White, or pale (grayish-white)} OR {Unknown} AND
What were the EYE markings if any = {Dark STRIPE THROUGH the eye} OR {None} OR {Unknown} AND
What colour was the TOP of HEAD = {Blue} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
<How BIG was the bird> = {Smaller than a sparrow} OR {Sparrow-sized} AND
<What TYPE of bird was seen> = {Warbler-like} OR {Songbird} OR {Woodpecker or Tree-clinging bird}
THEN
White-breasted Nuthatch (Confidence: 7)