Vietnam Adventure Tours & Travel, Trekking, Bird Watching, Family Tours

Eurasian tree sparrow 
(Sẻ, Passer montanus)

The Eurasian tree sparrow (Passer montanus) is a passerine bird in the sparrow family with a rich chestnut crown and nape and a black patch on each pure white cheek. 

The name Passer is the Latin word for "sparrow", coming from a root word referring to speed.
The Eurasian tree sparrow's binomial name is derived from two Latin words: passer, "sparrow", and montanus, "of the mountains" (from mons "mountain").
The Eurasian tree sparrow's common name is given because it prefers tree holes for nesting. 

House sparrow (Chim sẻ, sẻ nhà, sẻ ngựa, Passer domesticus)

The house sparrow (Passer domesticus) is a bird of the sparrow family Passeridae, found in most parts of the world.

The name Passer is the Latin word for "sparrow", coming from a root word referring to speed.
The Latin word domesticus means "belonging to the house", like the common name a reference to its association with humans.

Passer is a genus of sparrows, also known as the true sparrows.
The name Passer is the Latin word for "sparrow."

1/ House sparrow (Chim sẻ, sẻ nhà, sẻ ngựa, Passer domesticus)

2/ Eurasian tree sparrow (Sẻ, Passer montanus)

3/ Plain-backed sparrow (Sẻ bụi vàng, Passer flaveolus), also called the Pegu sparrow or olive-backed sparrow
flaveolus: Diminutive of flavus, yellowish

4/ Russet sparrow (Sẻ hung, Passer cinnamomeus), also called the cinnamon or cinnamon tree sparrow

Plain-backed sparrow 
(Sẻ bụi vàng, Passer flaveolus), also called the Pegu sparrow or olive-backed sparrow

The plain-backed sparrow (Passer flaveolus), also called the Pegu sparrow or olive-backed sparrow, is a sparrow found in Southeast Asia.
Its range spans from Myanmar to central Vietnam, and south to the western part of Peninsular Malaysia.

The name Passer is the Latin word for "sparrow."
flaveolus: Diminutive of flavus, yellowish.