RULE: Red-footed Booby (Dark Phase)

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

IF
What colour were the LEGS or FEET = {Orange, buff (orange-yellow), or tan} OR {Red, or pink} OR {Unknown} AND
What colour were the WING TIPS = {Black or dark gray} OR {Unknown} AND
Was the RUMP or LOWER BACK light = {Yes} OR {Unknown} AND
What colour was the BACK = {White, or pale (grayish-white)} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the THROAT = {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BILL = {Blue} OR {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 {Hooked} OR {Unknown} AND
<What LENGTH was the BILL> = {Medium} OR {Long} OR {Unknown} AND
What colour was the TOP of HEAD = {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What was the predominant colour of the HEAD = {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
How BIG was the bird = {Crow-sized} OR {Goose-sized} OR {Larger than a goose} AND
<What TYPE of bird was seen> = {Gull-like, or a Seabird} AND
What type of ENVIRONMENT was the bird seen in = {Open ocean; beyond sight of land} OR {In flight over saltwater} AND
WHERE was the bird seen = {Southeastern United States} OR {Southwestern United States}
THEN
Red-footed Booby (Confidence: 1)