Ntau txhiab tus noog tuaj rau hauv California txhua xyoo, feem ntau khiav tawm ntawm qhov txias txias ntawm lawv sab qaum teb. Qee tus nyob rau lub caij ntuj no, tab sis ntau tus nyob tsuas yog ntev txaus rau luv luv, xav tau ntau, so ua ntej mus rau sab qab teb, qee zaum mus txog rau Central thiab South America.

Cov noog no paub li cas tias lawv yuav mus qhov twg thaum lawv tsiv teb tsaws chaw ntev tseem yog ib qho paub tsis meej. Kev tshawb fawb qhia tias qee cov noog coj lawv cov cim qhia kev taug kev los ntawm lub hnub, lub hli thiab cov hnub qub. Lwm tus tau pom tias lawv siv cov cim qhia chaw xws li cov dej thiab cov roob, tsuas yog ua raws li txoj kev uas tsis muaj kev tawm tsam ntau. Thiab qee tus yuav siv txhua txoj hauv kev no ua ke. Tab sis, tsis muaj leej twg paub tseeb thiab tej zaum peb yuav tsis paub.

Qhov peb paub yog tias cov noog tsiv teb tsaws chaw yeej ib txwm ya raws tib txoj kev, sib sau ua ke txhua xyoo ntawm "flyways." Xav txog lawv zoo li lub xeev xwm txheej, superhighways ntawm cov chaw nyob rau lub caij. California nyob hauv Pacific Flyway, ib cheeb tsam uas ncab ntawm Arctic mus rau ntug dej hiav txwv ntawm Mexico, thiab los ntawm Rocky Mountains mus rau Pacific. Sab qaum teb mus rau sab qab teb, nws ntev tshaj 4,000 mais thiab, qee qhov, dav tshaj 1,000 mais. Nov yog qhov nws zoo li cas:

Pacific Flyway - POST
Lub Pacific Flyway (zoo li piav qhia saum toj no) yog ib qho ntawm plaub txoj hauv kev hauv North America siv los ntawm cov noog tsiv teb tsaws rau lawv cov kev tsiv teb tsaws txhua xyoo. Lub San Francisco Bay, thiab ntau haiv neeg nyob ib puag ncig Bay, tsim ib qho tseem ceeb tshaj plaws nres rau cov noog tsiv teb tsaws ntawm txoj kev ya no.

Lub San Francisco Bay yog ib qho chaw nres tsheb tseem ceeb heev rau cov noog uas taug kev raws Pacific Flyway. Ua lub qhov dej qab zib loj tshaj plaws (lub qhov ncauj dej ntawm tus dej loj) ntawm ntug dej hiav txwv Pacific ntawm North thiab South America, muaj ntau qhov chaw nyob ntawm no uas muab chaw nyab xeeb rau cov noog tsiv teb tsaws chaw uas nkees. Nws yog lub vaj kaj siab rau cov noog, tshwj xeeb tshaj yog rau cov neeg uas taug kev.

Wilson Warbler
Lub San Francisco Bay yog qhov chaw nres tsheb tseem ceeb rau cov noog tsiv teb tsaws chaw, zoo li Wilson Warbler no uas yuav hla yuav luag tag nrho North American sab av loj ntawm nws txoj kev tsiv teb tsaws chaw raws caij nyoog. Yees duab: Judy Kramer

Cov dej qab zib los ntawm sab qab teb Cascades, sab hnub poob Sierra Nevada thiab Coast Ranges sib sau ua ke ntawm no ua ntej sib tsoo nrog cov dej nplua nuj ntawm Bay. Nws yog qhov nplua nuj ntawm cov dej tshiab thiab cov dej ntsev nplua nuj uas pub rau cov av noo ntawm Sacramento River Delta, qhov chaw nyob ntawm Bay lub hav dej thiab tsim ib qho chaw nyob zoo tshaj plaws hauv ntiaj teb . Nws tsis yog qhov xav tsis thoob vim li cas cov noog nyiam nws.

Tiamsis tsis yog tsuas yog Bay thiab nws cov av noo xwb uas ua rau thaj chaw no zoo nkauj heev. Muaj qhov chaw xis nyob ntawm no rau yuav luag txhua tus noog tsiv teb tsaws chaw ua tsaug rau ntau yam huab cua thiab qhov chaw nyob hauv peb cheeb tsam. Cov nroj tsuag qhib marsh ze ntawm Bay (zoo li Bair Island ), oak savanna (zoo li Arastradero ), redwood hav zoov (zoo li Purisima Creek ), chaparral (zoo li Sierra Azul ) thiab ntug dej hiav txwv prairie (zoo li Wavecrest ) muaj ntau qhov chaw nyob rau cov noog tsiv teb tsaws chaw. Muaj chaw nkaum ntawm no rau yuav luag txhua tus noog uas nkees thiab xav so thiab rov qab muaj zog.

Qhov tseem ceeb ntawm Bay Area qhib qhov chaw rau Pacific Flyway yog qhov tseeb tshaj plaws thaum xav txog qhov kev sib sau ua ke ntawm thaj av "Cov Chaw Tseem Ceeb rau Cov Noog (IBAs)." Cov cheeb tsam no tau txheeb xyuas los ntawm National Audubon Society uas ua haujlwm los saib xyuas thiab tiv thaiv cov chaw tseem ceeb tshaj plaws rau cov noog hauv ntiaj teb. Daim ntawv qhia sib tham hauv qab no qhia txog peb cheeb tsam IBAs thiab kev sib tshooj ntawm cov cheeb tsam no thiab thaj av POST tau pab tiv thaiv. Saib thiab saib seb peb ua haujlwm li cas los tiv thaiv thiab saib xyuas ib qho chaw nkaum tseem ceeb tshaj plaws rau cov noog tsiv teb tsaws chaw hauv ntiaj teb:

Tawm mus thiab tshawb nrhiav!

Download tau peb Daim Duab Qhia Qhia Kom Paub Txog Bay Area Birds:

bay cheeb tsam noog qhia - POST

Tsis pom daim foos? Thov nias qhov no kom tau ib daim qauv yooj yim dua.

Tsis pom daim foos? Thov nias qhov no kom tau ib daim qauv yooj yim dua.

Txog Ncej

Peninsula Open Space Trust (POST) tiv thaiv qhov chaw qhib rau ntawm Peninsula thiab hauv South Bay kom tau txais txiaj ntsig ntawm txhua tus. Txij li thaum nws nrhiav tau nyob rau hauv 1977, POST tau lub luag hauj lwm rau txuag ntau tshaj 97,000 acres raws li thaj av tiv thaiv mus tas li hauv San Mateo, Santa Clara thiab Santa Cruz counties. Xav paub ntau ntxiv

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