RULE: Black-throated Gray Warbler (Male)

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

IF
What was the sex of the bird = {Male} OR {Unknown} AND
Were the SIDES STREAKED, SPOTTED or BARRED = {Yes} OR {Unknown} AND
What colour PATTERN if any was on the BACK = {Streaked, mottled, spotted, or barred} OR {Unknown} AND
What colour was the BACK = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {Unknown} AND
What colour was the THROAT = {Black, purple, or dark} OR {Unknown} AND
<What SHAPE was the BILL> = {Straight and slender} OR {Unknown} AND
<What LENGTH was the BILL> = {Short} OR {Medium} OR {Unknown} AND
What colour were the CHEEKS = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
What were the EYE markings if any = {Light STRIPE OVER, BEHIND or THROUGH the eye} OR {Unknown} AND
Was the CROWN or the TOP of HEAD striped = {No} 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> = {Smaller than a sparrow} OR {Sparrow-sized} AND
<What TYPE of bird was seen> = {Warbler-like} OR {Songbird} AND
WHERE was the bird seen = {Southwestern United States} OR {Northwestern Canada or United States}
THEN
Black-throated Gray Warbler (Confidence: 6)