Corvus brachyrhynchos
Khwangwala la America ndi limodzi mwa mbalame zomwe zimafalitsidwa kwambiri ku North America. Ngakhale kuti kuzunzika kosaiwalika kupyolera mwa poizoni, kusaka ndi njira zina, mbalamezi zimatha kusintha mosavuta ndipo zimapitirizabe kukula bwino m'madera ambiri.
Dzina Loyamba : Mgulu wa ku America, Mgulu Wodziwika, Mgulu
Dzina la sayansi : Corvus brachyrhynchos
Scientific Family : Corvidae
Kuwonekera ndi Kudziwika
Poyamba zingamveke zosavuta kuzindikira nyamakazi ya ku America monga mbalame yaikulu, yakuda, koma mbalamezi zikuwoneka mofanana ndi zina zina ndipo zingakhale zovuta kupeza chizindikiritso chabwino.
Mbalame zomwe zimadziwika ndi munda wofunika kwambiri wa mbalame izi ndi zizindikiro zina zimakhala ndi chidaliro chodziwika pozindikiritsa khwangwala.
- Bill : wakuda, wakuda
- Kukula : kutalika kwa masentimita 18 ndi mapiko a 35-40-inch, miyendo yaitali
- Mabala : Mdima wakuda, wamalasi, wofiirira, woyera (wosawerengeka)
- Zizindikiro : Mbalame yamphongo ndi yaikazi ndi yofanana ndi mvula yamdima yakuda yomwe ingasonyeze buluu-violet iridescence kuwala kwa dzuwa. Nthenga pammero ndizochepa ndipo zimakhala zosalala. Miyendo ndi miyendo ndi yakuda, ndipo diso ndi lofiira lomwe nthawi zambiri limawoneka lakuda. Powuluka, mbalamezi zimasonyeza mchira wamtengo wapatali umene umadutsa, ndipo anthu osowapo amatha kusonyeza mabala a white mapiko. Mapiko akuthawa amakhala ndi ziwalo zokopa kwambiri.
Zakudya, Zakudya ndi Zochita
Mabungwe ndi omnivores omwe amawathandiza ndipo amayesa pafupifupi pafupifupi chakudya chilichonse chomwe chilipo. Izi zimaphatikizapo tizilombo, amphibiyani, zokwawa, nyama zakutchire, mazira, mollusks, mbewu, zipatso, chitumbuwa ndi zinyalala kapena zokopa zakhitchini.
Nthawi zambiri amafuna chakudya chopezeka mosavuta, koma ali anzeru komanso okonda kuyesa zinthu zatsopano , zomwe zimawathandiza kuti azikhala ndi zakudya zambiri.
Habita ndi Kusamukira
Khwangwala la America likupezeka chaka chonse ku United States m'mayiko ambiri kupatulapo nkhalango zazikulu kapena madera ouma kwambiri.
M'nyengo ya chilimwe, zokololazo zimaphatikizapo zambiri ku Canada kupatula kumpoto kotalika. Makuku a America amakonda malo otukuka kapena ochepa ngati nkhuni, koma amatha kukhala amtendere ndipo nthawi zambiri amawoneka pagulu, masewera othamanga, malo otsekera magalimoto komanso malo osungiramo katundu.
Zolemba
Mbalamezi zimadziwika bwino chifukwa cha maitanidwe awo omwe amadziwika bwino kwambiri omwe ali ndi khalidwe lodziwika bwino. Mawonekedwe, tempo ndi kutalika kwa mayitanidwe amasiyana, komanso chiwerengero cha kubwereza. Mbalame yofulumira imakhalanso yowonongeka, ndipo khwangwala la America ladziwika kuti imatsanzira kuitana kwa mbalame zina ndi kumveka kosakhala mbalame.
Makhalidwe
Izi ndi mbalame zodabwitsa kwambiri zomwe zawonetsa luso lothana ndi mavuto m'machitidwe a labu, makamaka kuti munthu apeze chakudya. Kumtchire, iwo amatha kukwera mabomba, mbalame , ziweto ndi mbalame zina zowopsa, ndipo nyamayi zina zimawoneka ngati zikuchititsa kuti anthu aziwombera ngati masewera kapena zosangalatsa , ngakhale akuzunza amphaka kapena agalu. Mbalamezi zimatha kusonkhanitsa zinthu zowala ndipo nthawi zambiri zimasunga zisa zawo. M'nyengo yozizira, amatha kupanga zoweta zazikulu zoposa mbalame zoposa miliyoni, ndipo ngakhale m'chilimwe nthawi zambiri sakhala paokha, makamaka ngati chakudya chimakhala chochuluka.
Kubalana
Mbalame za ku America ndi mbalame zosiyana kwambiri ndipo mbalamezi zimagwirira ntchito pamodzi kumanga chisa cha nthambi ndi timitengo, ndi chikho chamkati chokhala ndi singano zapaini, ubweya wa nyama kapena zinthu zofewa zofanana.
Makolo onse awiriwa adzaphatikizira ana a mazira atatu kapena atatu obiriwira a buluu kapena a azitona kwa masiku 17-18. Mazira nthawi zambiri amasonyeza madontho kapena amawombera ku mapeto aakulu. Nkhuku zazing'ono zimasamalidwa ndi makolo onse awiri kwa masiku 28-35, ndipo mbalame zosagwirizana zimatha kuthandizira kusamalira mbalame - zimakhala zachilendo kwa mbalame zomwe zimachokera kumayambiriro akale kuti zithandize abale, ngakhale m'zaka zotsatira. Nkhuku za ku America zikhoza kukweza 1-2 ana aang'ono pa chaka.
Kukopa Amitundu Achimereka
Makuku a ku America amayendera maulendo omwe amapereka chimanga ndi suet, makamaka m'mphepete mwawo. Chifukwa mbalamezi zimatha kupanga zoweta zazikulu, komabe nthawi zambiri zimakhala zovuta. Powachotsa kutali ndi bwalo lanu, pewani kupereka zakudya izi ndi kuchotsa zakudya zakudya zakutchire, windfall zipatso ndi zina. Sungani zitsulo zotayika mosaphimbidwa, ndikuyeretsani mbewu zotayika kuti muteteze chakudya.
Odyetsa mwapadera kwa mbalame zing'onozing'ono amapangidwanso kuti zisawononge mimbulu yaku America ndi mbalame zofanana kuti zidyetse.
Kusungirako
Nkhuku za ku America sizikuwopsedwa kapena kuziika pangozi, ngakhale kuti nthawi zina amazunzidwa, makamaka m'madera am'munda kumene gulu lalikulu likhoza kuwononga mbewu. Zida zapadera zingakhale zothandiza kusunga makutu ngati kuli kofunikira. Mbalamezi zimakhala ndi matenda opatsirana pogonana a West Nile, ndipo pakufunika kuphunzira kuti mudziwe momwe angatetezere ziweto kuti zifalikire .
Mbalame zofanana
- Common Raven ( Corvus corax )
- Mtsinje wa Northwestern Crow ( Corvus caurinus )
- Nkhumba za Nsomba ( Corvus ossifragus )
- Chigwa cha Chihuahuan ( Corvus cryptoleucus )
- Eurasian Jackdaw ( Corvus monedula )
- Kawirikawiri ( Quiscalus quiscula )