No differences between calls or song in the Common Nighthawk.

The Common Nighthawk occasionally will make a similar call, but it is not as consistent.

The Common Nighthawk is not well designed to survive in poor conditions, specifically low food availability.

The latter's call was explained as the nocturnal expression of the Common Nighthawk.

The Common Nighthawk is drawn into urban built-up areas by insects.

The Common Nighthawk was observed to drink on its winter range by flying extremely low over the surface of the water.

The Common Nighthawk shows variability in territory size.

Up until the early 19th century, the Common Nighthawk and the Whip-poor-will were thought to be one species.

The Common Nighthawk has long slender wings that at rest extend beyond a notched tail.

The Common Nighthawk breeds during the period of mid March to early October.

The flight of the Common Nighthawk is erratic and jerky, as it attempts to prey on various flying insects.

Flying and Eating Q. I understand that the common nighthawk, though increasingly rare, still appears in New York during the summer.

Frequent flyers, the long-winged Common Nighthawk hunts on the wing for extended periods at high altitudes or in open areas.

The Common Nighthawk of North America flies in swift-like fashion on its long, slender, pointed wings.

The Common Nighthawk forages higher above ground than the Lesser Nighthawk and has a different call.

The Antillean Nighthawk may only be distinguished as different from the Common Nighthawk, once in the hand.

The Common Nighthawk is the only Nighthawk occurring over the majority of northern North America.

The Common Nighthawk will migrate by day or night in loose flocks; frequently numbering in the thousands, no visible leader has been observed.

In the Common Nighthawk all bodily plumage and rectrices are replaced in the post-juvenile moult.

This bird looks similar to the Common Nighthawk, but is slightly smaller, has a slightly less deeply forked tail, and is more buffy in coloration.

Some nightjars also have bristles around the bill (the Common Poorwill does, the Common Nighthawk does not).

The Common Nighthawk (Chordeiles minor) is a medium-sized crepuscular or nocturnal bird, whose presence and identity are best revealed by its vocalization.

The Common Nighthawk adults have a complete moult that occurs mostly or completely on wintering grounds and is not ceased until January or February.

The Common Nighthawk resembles both the Antillean Nighthawk and Lesser Nighthawk.