RULE: Eurasian Jackdaw

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

IF
Did the WINGS have STRIPES or PATCHES = {No} OR {Unknown} AND
What SIZE was the TAIL = {Very short} OR {Short} OR {Medium} OR {Unknown} AND
What SHAPE was the TAIL = {Square or slightly notched at the end} OR {Rounded at the end} OR {Unknown} AND
What colour was the BACK = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the THROAT = {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 {Conical and slender} OR {Unknown} AND
What LENGTH was the BILL = {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 colour were the EYES = {White or light gray} OR {Yellow or olive} OR {Unknown} AND
What colour was the TOP of HEAD = {White, or pale (grayish-white)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What was the predominant colour of the HEAD = {White, or pale (grayish-white)} OR {Gray, or blue-gray} OR {Unknown} AND
How BIG was the bird = {Robin-sized} OR {Pigeon-sized} AND
<What TYPE of bird was seen> = {Songbird} AND
<WHERE was the bird seen> = {Northeastern Canada or United States} OR {Southeastern United States}
THEN
Eurasian Jackdaw (Confidence: 1)