Since 1977, tree swallows at Long Point Bird Observatory have been losing mass and producing fewer offspring due to a collapse in the insect population, according to new research led by the University of Michigan. (Sherri and Brock Fenton via SWNS)
Although tree swallow populations are declining, this doesn't appear to be because of upticks in mortality, at least for the Long Point flock. (Brian Weeks via SWNS)
Long Point Bird Observatory, located in southern Ontario on a piece of land that sticks out into Lake Erie, is the oldest continuously-operated bird observatory in North America. It was founded with help from U-M alumnus David Hussel, who served as its first executive director. (Charlotte Probst via SWNS)
Tree swallows are uniquely suited for a study like this because they will return to nesting sites that researchers have set up for them. (Sherri and Brock Fenton via SWNS)
Since 1977, tree swallows at Long Point Bird Observatory have been losing mass and producing fewer offspring due to a collapse in the insect population, according to new research led by the University of Michigan. (Sherri and Brock Fenton via SWNS)
By Talker
By Stephen Beech
Plummeting insect numbers have resulted in smaller wild birds that reproduce less, reveals new research.
Although tree swallow populations are declining, this doesn't appear to be because of upticks in mortality, at least for the Long Point flock. (Brian Weeks via SWNS)
Long Point Bird Observatory, located in southern Ontario on a piece of land that sticks out into Lake Erie, is the oldest continuously-operated bird observatory in North America. It was founded with help from U-M alumnus David Hussel, who served as its first executive director. (Charlotte Probst via SWNS)
Tree swallows are uniquely suited for a study like this because they will return to nesting sites that researchers have set up for them. (Sherri and Brock Fenton via SWNS)
