Orange-Billed Sparrow

I saw two orange-billed sparrows in Ecuador: one at Amagusa Preserve in Mashpi and one where we stayed in Mindo at Las Terrazas de Dana Boutique. 

This orange-billed sparrow (and the next photo below) was found at Amagusa Preserve in Mashpi. 

This orange-billed sparrow was in Mindo. 

It has a bright orange bill, a bold black and white head pattern, a white throat, a black belly and gray lower body, a moss-green back and gray feathers. However, as I look at photos on eBird, I see some with very bright orange beaks, some with a tarnished orange beak, like mine, and some with an all-black or nearly all-black beak. eBird notes 52,488 observations and 1,187 photos. It is found in Central America in Belize, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua and Panama. It is found in northwestern South America in Colombia, Ecuador and northern Peru. 

Range of orange-billed sparrow from Wikipedia.