Bruant vespéral— Quebec wildlife

The vesper sparrow (Pooecetes gramineus) is a medium-sized New World sparrow. The only member of the genus Pooecetes, it is a pale sparrow with brown streaks that breeds across the grasslands of northern North America. It migrates to winter in the southern United States and Mexico.

Description

The vesper sparrow is 14–16 cm (5.5–6.3 in) in overall length and weighs 19.5–28.3 g (0.69–1.00 oz). Adults have light brown upper-parts and light under-parts, both with darker streaking. There are three features that are unique to the vesper sparrow. The first is the presence of a small, white ring surrounding the eyes. The second is the flash of white tail feathers seen during flight. The third is the presence of a chestnut patch on the shoulder. However, this is usually not visible to an observer. Another notable characteristic is that some vesper sparrows, especially west of the Cascades, tend to have a more pinkish hue. They also do not have a bold eyeline found in some sparrows. The male sings from a higher perch, such as a shrub or fencepost, which indicates his ownership of the nesting territory. The musical song begins with two pairs of repeated whistled notes and ends in a series of trills, somewhat similar to that of the song sparrow. They have slurred whistles with one lower pitch followed by a second higher pitch. Furthermore, vesper sparrows make use of short descending trills as a part of their song.