RULE: Yellow-rumped Warbler (Female, Fall Male, or Immature)

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

IF
What was the sex of the bird = {Female} OR {Unknown} AND
What colour TAIL PATTERN was there if any = {None} OR {Unknown} AND
Were the SIDES STREAKED, SPOTTED or BARRED = {Yes} OR {Unknown} AND
Was the RUMP or LOWER BACK light = {Yes} OR {Unknown} AND
What colour was the BELLY = {White, or pale (grayish-white)} OR {Unknown} AND
What colour was the BREAST = {White, or pale (grayish-white)} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Yellow} OR {Unknown} AND
What SHAPE was the BILL = {Straight and slender} OR {Unknown} AND
What LENGTH was the BILL = {Short} OR {Medium} OR {Unknown} AND
What colour were the CHEEKS = {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Black, purple, or dark} OR {Unknown} AND
What colour was the TOP of HEAD = {Yellow} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
How BIG was the bird = {Smaller than a sparrow} OR {Sparrow-sized} AND
<What TYPE of bird was seen> = {Warbler-like} OR {Songbird} AND
WHEN was the bird seen = {Spring} OR {Summer} OR {Fall}
THEN
Yellow-rumped Warbler (Confidence: 9)