RULE: Craveri's Murrelet

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

IF
What color was the UNDERSURFACE of the wing as seen in flight = {Dark} OR {Unknown} AND
What SIZE was the TAIL = {Very short} OR {Short} OR {Medium} OR {Unknown} AND
What colour was the SIDE = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
<What colour was the BACK> = {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {Unknown} AND
What colour was the BILL = {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> = {Short} OR {Medium} OR {Long} OR {Unknown} AND
What colour were the EYES = {Brown or blackish brown} OR {Black or dark gray} 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> = {Sparrow-sized} OR {Robin-sized} AND
<What TYPE of bird was seen> = {Gull-like, or a Seabird} OR {Duck or Goose-like} AND
<What type of ENVIRONMENT was the bird seen in> = {Saltwater marsh or wetland} OR {Flat saltwater shore; beach} OR {Rocky saltwater shore; cliff} OR {Open ocean; beyond sight of land} OR {In flight over saltwater} AND
<WHERE was the bird seen> = {Southwestern United States}
THEN
Craveri's Murrelet (Confidence: 3)