Pearly-eyed Thrasher (Margarops fuscatus) March 9, 2012March 9, 2012 Supertrooper Previous Next When checking into our bungalow at the Casa Grande Mountain Retreat, there were two Pearly-eyed Thrashers on the balcony of our bungalow. Their characteristic song reminds me of this tranquil location in the mountains of Puerto Rico.