RULE: Mountain Bluebird (Female)

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

IF
Did the WINGS have STRIPES or PATCHES = {No} OR {Unknown} AND
What colour were the WINGS = {Blue} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BACK = {Blue} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {Orange, buff (orange-yellow), or tan} OR {Gray, or blue-gray} OR {Unknown} AND
What colour PATTERN if any was shown on the BREAST = {Uniform color} OR {Unknown} AND
What colour was the BREAST = {White, or pale (grayish-white)} OR {Orange, buff (orange-yellow), or tan} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Orange, buff (orange-yellow), or tan} OR {Gray, or blue-gray} OR {Unknown} AND
What SHAPE was the BILL = {Straight and slender} OR {Straight and thick} OR {Conical and slender} OR {Unknown} AND
What LENGTH was the BILL = {Very short} OR {Short} OR {Medium} OR {Long} OR {Unknown} AND
What FACIAL or HEAD features were noted if any = {Light area near or around the eye} OR {NONE or a PLAIN unmarked FACE} OR {Unknown} AND
What were the EYE markings if any = {Light RING (white or yellow) AROUND the eye} OR {None} OR {Unknown} AND
What colour was the TOP of HEAD = {Gray, or blue-gray} OR {Unknown} AND
What was the predominant colour of the HEAD = {Gray, or blue-gray} OR {Unknown} AND
How BIG was the bird = {Sparrow-sized} OR {Robin-sized} AND
<What TYPE of bird was seen> = {Songbird} AND
WHERE was the bird seen = {Southwestern United States} OR {Northwestern Canada or United States}
THEN
Mountain Bluebird (Confidence: 4)