RULE: Razorbill

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

IF
In FLIGHT did the bird display a LIGHT WING STRIPE or PATCH = {No} OR {Unknown} AND
What colour were the LEGS or FEET = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the SIDE = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
What colour PATTERN if any was on the BACK = {Uniform} OR {Unknown} AND
What colour was the BACK = {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {White, or pale (grayish-white)} OR {Unknown} AND
What colour was the THROAT = {Black, purple, or dark} OR {Unknown} AND
What colour was the BILL = {Black, purple, or dark} OR {Unknown} AND
<What SHAPE was the BILL> = {Straight and thick} OR {Hooked} OR {Unknown} AND
<What LENGTH was the BILL> = {Short} OR {Medium} OR {Unknown} AND
How BIG was the bird = {Pigeon-sized} OR {Crow-sized} AND
<What TYPE of bird was seen> = {Gull-like, or a Seabird} OR {Duck or Goose-like} AND
WHEN was the bird seen = {Spring} OR {Summer} 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 = {Northeastern Canada or United States}
THEN
Razorbill (Confidence: 5)