yellow streak

The shepherd had just sent the collie to fetch them up, and the running dog was like a yellow streak across the green.

Alleyne gave a gulp in his throat, for the yellow streak seemed to pass through the man; but he still ran forward.

Jasper, after he had recovered in a measure from his bitter disappointment, began to show a yellow streak.

If Bunny Payton could only keep that yellow streak under cover!

Upper parts frog green, with a rusty-yellow streak between two black lines on the crown.