By Jim Acquire
Be taught 100 Frequent Valley Birds is a photograph weblog sequence highlighting the 100 most typical Valley fowl species.
Put up #6 within the Be taught 100 Frequent Valley Birds sequence. (Species 10/100.)
The Loggerhead Shrike is a Pretty Frequent Resident to California’s Central Valley and will be present in grasslands, freshwater wetlands and chaparral habitats. There are 2 species of Shrike recurrently discovered within the US, the Loggerhead Shrike and the Northern Shrike. Nonetheless, the Northern Shrike is a really uncommon vagrant to the Central Valley.
A Species of Particular Concern (SSC) is a species, subspecies, or distinct inhabitants of an animal native to the Central Valley that at the moment is listed as a Federal Endangered, California Endangered or California Species of Particular Concern.
Loggerhead Shrikes are at the moment thought-about a Hen Species of Particular Concern (breeding), precedence 2. Over their historic vary, numbers are barely declining general with a dramatic drop in breeding populations within the southern a part of the state. This species was described as widespread to considerable within the San Joaquin Valley in 1927 by Grinnell and Wythe, however latest Christmas Hen Rely (CBC) outcomes present an accelerated statewide decline from 1959 to 1988. (See California Hen Species of Particular Concern Report)
The Loggerhead Shrike is considered one of two shrikes recurrently discovered within the US, however is essentially the most anticipated shrike within the Central Valley. Its shut cousin, the Northern Shrike is a really uncommon winter customer right here with just one document in Stanislaus County. Roughly the dimensions of a starling, this grey and white perching fowl can incessantly be seen alongside roads hanging on to a barbed-wire fence. Its giant head with daring black masks distinguish the Loggerhead Shrike from the same coloured Northern Mockingbird.
When disturbed, the Loggerhead Shrike will drop down and fly low alongside the bottom earlier than swooping as much as achieve one other perch on the identical fence line. The Loggerhead Shrike is kind of the daring predator, usually taking up giant prey after which impaling it on a barbed-wire or thorn. It has been given the nickname of “butcher fowl” attributable to this curious, but ugly conduct.
Extra widespread within the winter than in the summertime, Loggerhead Shrikes will be present in open areas similar to grasslands and wetlands. They are often incessantly seen alongside the grasslands alongside the jap valley roads (Merced Falls Rd., Willms Rd., Sonora Rd.) or within the grasslands and wetlands areas (Santa Fe Grade, Sandy Mush Rd.) in Merced County. Try the eBird Loggerhead Shrike species map.
Although very uncommon within the Central Valley, the Northern Shrike may be very related in look to the Loggerhead Shrike. Northern Shrikes are greater than Loggerheads. Northern Shrikes have a bigger, extra strongly hooked invoice. Different dependable marks embrace the Northern’s narrower black masks that often doesn’t proceed in entrance of their eye (or proceed above the invoice), and the Northern’s extra strongly barred underparts. Each these discipline marks will be troublesome to see within the discipline.
Try the comparability between the 2 species beneath.
Earlier posts from the Be taught 100 Frequent Valley Birds sequence,