Wrentit with nesting material Inceville Los Liones Canyon Los Angeles 150
"Wrentits form tight monogamous pair bonds, which are normally lifelong. Both sexes defend the territory throughout the year with distinctive songs that have been aptly called "the voice of the chaparral." The male habitually shares in incubation and is normally in vocal contact at all times with the female, and the pair is even known to roost together, forming contiguous "feather-balls," and to mutually preen. The young commonly remain in family flocks for at least 30 days after fledging and, on occasion, use their natal territory for breeding.
With few exceptions, most of our current knowledge on the behavior, life history, breeding ecology, and demography of the Wrentit has come from two studies, both in the San Francisco Bay region of California. Most information on life-history originated from Mary M. Erickson, under the guidance of Professor Joseph Grinnell, in an intensive 4-year study in a chaparral canyon in Berkeley, California (Erickson 1938). Her insightful and highly detailed study (summarized in a 332-page monograph), followed, year-round, the life history of 21 territorial pairs and individuals. "
birdsna.org
Wrentit with nesting material Inceville Los Liones Canyon Los Angeles 150
"Wrentits form tight monogamous pair bonds, which are normally lifelong. Both sexes defend the territory throughout the year with distinctive songs that have been aptly called "the voice of the chaparral." The male habitually shares in incubation and is normally in vocal contact at all times with the female, and the pair is even known to roost together, forming contiguous "feather-balls," and to mutually preen. The young commonly remain in family flocks for at least 30 days after fledging and, on occasion, use their natal territory for breeding.
With few exceptions, most of our current knowledge on the behavior, life history, breeding ecology, and demography of the Wrentit has come from two studies, both in the San Francisco Bay region of California. Most information on life-history originated from Mary M. Erickson, under the guidance of Professor Joseph Grinnell, in an intensive 4-year study in a chaparral canyon in Berkeley, California (Erickson 1938). Her insightful and highly detailed study (summarized in a 332-page monograph), followed, year-round, the life history of 21 territorial pairs and individuals. "
birdsna.org