RULE: Chihuahuan Raven

<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 = {Medium} OR {Long} OR {Very Long} OR {Unknown} AND
What SHAPE was the TAIL = {Rounded at the end} OR {Pointed or wedge-shaped} OR {Unknown} AND
What colour was the BACK = {Black, purple, or dark} OR {Unknown} AND
What colour was the BELLY = {Black, purple, or dark} OR {Unknown} AND
What colour was the BREAST = {Black, purple, or dark} OR {Unknown} AND
What colour was the THROAT = {Black, purple, or dark} OR {Unknown} AND
What SHAPE was the BILL = {Straight and thick} OR {Conical and slender} OR {Conical and thick} OR {Downcurved} 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 was the TOP of HEAD = {Black, purple, or dark} OR {Unknown} AND
What was the predominant colour of the HEAD = {Black, purple, or dark} OR {Unknown} AND
How BIG was the bird = {Crow-sized} OR {Goose-sized} AND
<What TYPE of bird was seen> = {Songbird} AND
WHERE was the bird seen = {Southwestern United States}
THEN
Chihuahuan Raven (Confidence: 3)