RULE: Common Grackle

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

IF
Did the WINGS have STRIPES or PATCHES = {No} OR {Unknown} AND
What colour were the WINGS = {Green} OR {Blue} OR {Black, purple, or dark} OR {Unknown} AND
What SIZE was the TAIL = {Medium} OR {Long} OR {Very Long} OR {Unknown} AND
What colour was the BACK = {Green} OR {Blue} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {Green} OR {Blue} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {Green} OR {Blue} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the THROAT = {Blue} 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 {Conical and thick} 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 = {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 = {Blue} OR {Black, purple, or dark} OR {Unknown} AND
What was the predominant colour of the HEAD = {Blue} OR {Black, purple, or dark} OR {Unknown} AND
How BIG was the bird = {Robin-sized} OR {Pigeon-sized} AND
<What TYPE of bird was seen> = {Songbird}
THEN
Common Grackle (Confidence: 8)