RULE: White-rumped Sandpiper

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

IF
What colour were the LEGS or FEET = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
How far did the WING TIPS extend in relation to the tail while the bird was at rest or landed = {Extended well beyond the tail} OR {Extended just slightly beyond the tail} OR {Unknown} AND
Was the RUMP or LOWER BACK light = {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 BELLY = {White, or pale (grayish-white)} OR {Unknown} AND
What colour PATTERN if any was shown on the BREAST = {Streaked lengthwise (from head to tail)} OR {Spotted or mottled} OR {Barred crosswise (from side to side)} OR {Unknown} AND
What colour was the BILL = {Gray, or blue-gray} OR {Black, purple, or dark} 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 {Unknown} AND
How BIG was the bird = {Sparrow-sized} OR {Robin-sized} AND
<What TYPE of bird was seen> = {Sandpiper-like}
THEN
White-rumped Sandpiper (Confidence: 4)