The Molt of Scrub Jays and Blue Jays in Florida

An alternative approach to the measurement of seasonal trends in bird breeding success: a case study of the bullfinch Pyrrhula pyrrhula

“…The findings were consistent with moult beginning at about the time the last young left the nest, even though the young had then to be fed for more than another 2 weeks. Similar overlap between the end of breeding and the start of moult has been noted in some other passerine species, being especially marked in late breeding individuals (Marler 1956; Eaton 1957; Dixon 1962; Evans 1966; Seel 1976; Bancroft & Woolfenden 1982).…”

An alternative approach to the measurement of seasonal trends in bird breeding success: a case study of the bullfinch Pyrrhula pyrrhula

“…The findings were consistent with moult beginning at about the time the last young left the nest, even though the young had then to be fed for more than another 2 weeks. Similar overlap between the end of breeding and the start of moult has been noted in some other passerine species, being especially marked in late breeding individuals (Marler 1956; Eaton 1957; Dixon 1962; Evans 1966; Seel 1976; Bancroft & Woolfenden 1982).…”

Arboviral Infection in Two Species of Wild Jays (Aves: Corvidae): Evidence for Population Impacts

“…Nestlings of both species were in the nest for 18 Ð21 d after hatching. SY and ASY birds Þrst captured during autumn could not be accurately distinguished based on plumage characteristics (Bancroft and Woolfenden 1982). These individuals were classiÞed as adults of unknown age (AHY) and were excluded from some analyses.…”

“…Many scrub-jays were banded as nestlings so their exact age at subsequent captures was known. Other individuals of both species were aged based on plumage characteristics (Dater 1970, Bancroft andWoolfenden 1982).…”

Patterns of West Nile Virus Infection in Ohio Blue Jays: Implications for Initiation of the Annual Cycle

“…Wings were shipped to Oberlin College and assigned to one of three age categories based on color and pattern of bars on the primary coverts, secondary coverts, and secondary flight feathers. 11,12 Blue jays molt once per year (termed the prebasic molt), usually over a 2−3-month period. During the prebasic molt of adults (i.e., those birds in their second calendar year or older), all the feathers are replaced.…”

An alternative approach to the measurement of seasonal trends in bird breeding success: a case study of the bullfinch Pyrrhula pyrrhula

“…The findings were consistent with moult beginning at about the time the last young left the nest, even though the young had then to be fed for more than another 2 weeks. Similar overlap between the end of breeding and the start of moult has been noted in some other passerine species, being especially marked in late breeding individuals (Marler 1956; Eaton 1957; Dixon 1962; Evans 1966; Seel 1976; Bancroft & Woolfenden 1982).…”

Arboviral Infection in Two Species of Wild Jays (Aves: Corvidae): Evidence for Population Impacts

“…Nestlings of both species were in the nest for 18 Ð21 d after hatching. SY and ASY birds Þrst captured during autumn could not be accurately distinguished based on plumage characteristics (Bancroft and Woolfenden 1982). These individuals were classiÞed as adults of unknown age (AHY) and were excluded from some analyses.…”

“…Many scrub-jays were banded as nestlings so their exact age at subsequent captures was known. Other individuals of both species were aged based on plumage characteristics (Dater 1970, Bancroft andWoolfenden 1982).…”

Patterns of West Nile Virus Infection in Ohio Blue Jays: Implications for Initiation of the Annual Cycle

“…Wings were shipped to Oberlin College and assigned to one of three age categories based on color and pattern of bars on the primary coverts, secondary coverts, and secondary flight feathers. 11,12 Blue jays molt once per year (termed the prebasic molt), usually over a 2−3-month period. During the prebasic molt of adults (i.e., those birds in their second calendar year or older), all the feathers are replaced.…”

An alternative approach to the measurement of seasonal trends in bird breeding success: a case study of the bullfinch Pyrrhula pyrrhula

“…The findings were consistent with moult beginning at about the time the last young left the nest, even though the young had then to be fed for more than another 2 weeks. Similar overlap between the end of breeding and the start of moult has been noted in some other passerine species, being especially marked in late breeding individuals (Marler 1956; Eaton 1957; Dixon 1962; Evans 1966; Seel 1976; Bancroft & Woolfenden 1982).…”

Arboviral Infection in Two Species of Wild Jays (Aves: Corvidae): Evidence for Population Impacts

“…Nestlings of both species were in the nest for 18 Ð21 d after hatching. SY and ASY birds Þrst captured during autumn could not be accurately distinguished based on plumage characteristics (Bancroft and Woolfenden 1982). These individuals were classiÞed as adults of unknown age (AHY) and were excluded from some analyses.…”

“…Many scrub-jays were banded as nestlings so their exact age at subsequent captures was known. Other individuals of both species were aged based on plumage characteristics (Dater 1970, Bancroft andWoolfenden 1982).…”

Patterns of West Nile Virus Infection in Ohio Blue Jays: Implications for Initiation of the Annual Cycle

“…Wings were shipped to Oberlin College and assigned to one of three age categories based on color and pattern of bars on the primary coverts, secondary coverts, and secondary flight feathers. 11,12 Blue jays molt once per year (termed the prebasic molt), usually over a 2−3-month period. During the prebasic molt of adults (i.e., those birds in their second calendar year or older), all the feathers are replaced.…”