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always for the community VOL 26 NO 1
February 2021
www.valleysentinel.com
SPOTLIGHT
Longtime East Bay Parks GM Bob Doyle retires
After a remarkable 47 years of service at the East Bay Regional Park District (EBRPD), General Manager Robert E. Doyle will be retiring at the end of this month. His legacy is one that will last generations and serves as an inspiration to many. His long list of accomplishments benefit millions of East Bay residents. For the past 10 years, he has been General Manager of the largest regional park system in the nation, with over
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Each year, the East Bay Regional Park District launches its “Trails Challenge” program that features 20 different trails throughout the parks to get people out and enjoying new trails and different venues. This is year 28! A guidebook, t-shirt and commemorative pin for those who complete the challenge is an incentive to get out on the trails. For information, see the article on page 3.
Ruby-crowned Kinglet By James M. Hale
The diminutive, Ruby-crowned Kinglet (Regulus calendula), is difficult to observe on its breeding grounds, as it usually forages and nests high in the coniferous canopy. Throughout the East Bay Area and Contra Costa County, during migration and winter, the Ruby-crowned Kinglet is more conspicuous, as it nervously flicks its wings, while flitting about low vegetation in pursuit of food. The classic, jit-jidit, two and three note call, heralds the Rubycrowned Kinglet’s presence. Rubycrowned Kinglet vocalizations and songs have been described as remarkably loud and complex for its size. One of the smallest North American birds, the Rubycrowned Kinglet is placed in its own subgenus, Corthylio, as it is not closely related to other kinglets. Currently, three subspecies are recognized.
The Ruby-crowned Kinglet is a very small bird, no more than four and one half inches long, with a wingspan of up to seven inches, and weighing five to ten grams. Olive-green plumage, two white wing bars, and a white eye-ring, are diagnostic characteristics in both sexes. Males have a brilliant red crown patch that usually remains concealed, unless the bird is agitated or threatened. Juveniles are similar in plumage to adults. Ruby-crowned Kinglets bare an uncanny resemblance to Hutton’s Vireo. The Ruby-crowned Kinglet i s m i g r a t o r y, w i t h p e a k migration periods in March to the northern breeding grounds, and in October, south to its winter range. Breeding habitat is the spruce-fir forests in the northern, mountainous regions
of Alaska, Canada, and the United States. Winter habitat in the southern United States and Mexico consists of a w i d e va r i e t y of vegetation types, from mainly open deciduous woods, streamside thickets, mixed evergreen forests, and other habitats. The flight of the Rubycrowned Kinglet has been described as “swift, jerky, and erratic”. This “tiny dynamo” actively forages from treetops to low bushes, carefully examining twigs, tree trunks, and foliage, or sometimes hovering while feeding. Their wing-flicking behavior is characteristic, as
This Month’s Special Section:
Seniors
page 6
the kinglet hops from branch to branch. On occasion, an aerial insect catches the kinglet’s attention, and it will fly out in pursuit of its prey. Insects, spiders, berries, and tree sap are favorite foods. During courtship, the male Ruby-crowned Kinglet may See KINGLET page 4