The bird looked like a hybrid well-known among birders, called the Brewster’s warbler, which is a mix between the golden-winged and blue-winged warbler. But it sang like a bird from a different genus, called the chestnut-sided warbler, and had a twinge of the chestnut-sided’s signature red patch on its side.

Ryan F. Mandelbaum, DNA Testing Reveals Baffling Bird Is Three Species In One, Gizmodo Australia, 10 November 2018

A twinge is a sudden, sharp pain.  A little bit of color (or of flavor, or of some other property) is a tinge.  This is the second time in a month in which I’ve seen twinge used for tinge in the press.  Who cares?  They’re almost the same!