Kanal tumshugʻi kuku (Scythrops novaehollandiae) — dunyodagi eng katta kuku va eng yirik zoti-parazit qush. O'zining ulkan, pastga egilgan puli va baland ovozli, shovqinli qo'ng'iroqlari bilan mashhur bo'lgan bu qush Avstraliyaga ko'chmanchi mehmon bo'lib, ko'pincha yozgi bo'ronlar kelishi bilan bog'liq.
Jismoniy xususiyatlar
Hajmi: uzunligi 58-65 sm, qanotlari taxminan 1 metr.
Tashqi ko'rinishi: boshi va pastki qismlari och kulrang, qanotlari va orqa tomoni to'q kulrang, uzun dumli.
Ajratib turuvchi xususiyatlari: katta rangpar, kulrang-somon rangli, pastga egri chiziqli va ko'z atrofidagi yorqin qizil teri.
Parvoz silueti: Parvozda ular katta, xochga mixlangan (xoch shaklidagi) yirtqich qushga o'xshaydi.
Balog'atga etmaganlar: ko'proq tusli jigarrang va och pushti, kichikroq, iflosroq pushti rangga ega va qizil ko'z pardasi yo'q.
Yashash joyi va tarqalishi
Migratsiya: Yangi Gvineya, Indoneziya va Bismark arxipelagidan avgust-oktyabr oylarida shimoliy va sharqiy Avstraliyaga ko'chib, fevral yoki mart oylarida issiqroq iqlimga jo'nab ketadi.
Diapazon: Gʻarbiy Avstraliyadan Shimoliy hudud va Kvinslend boʻylab, NSW sharqiy qirgʻoqlari boʻylab choʻzilgan.
Yashash joyi: baland ochiq o'rmonlar, o'rmonzorlar va bargli shahar joylari (ayniqsa, mahalliy anjirlar mavjud).
Xulq-atvor va ovqatlanish
Parhez: birinchi navbatda mevali (meva iste'mol qiladigan), mahalliy anjirni afzal ko'radi, lekin ular hasharotlar, tırtıllar va ba'zan boshqa qushlarning tuxumlari va jo'jalarini ham iste'mol qiladilar.
Qo'ng'iroq: juda baland va shovqinli, ko'pincha naslchilik mavsumida tun davomida tez-tez eshitiladigan "kawk" va "awk-awk-awk" deb ta'riflanadi.
"Mobbing": Parazit tabiati tufayli ular tez-tez kichikroq qushlar, xususan qarg'alar va so'ng'izlar tomonidan ta'qib qilinadi va ta'qib qilinadi.
Ko'paytirish va ko'paytirish
Cho'l parazitligi: ular uya qurmaydilar. Buning o'rniga ular yirik, hududiy qushlar, ko'pincha Pied Currawongs, Avstraliya Magpies va qarg'alarning uyalariga tuxum qo'yadi.
Naslchilik taktikasi: juftliklar ko'pincha birga ishlaydi; urg'ochi tuxum qo'yganda, erkak ota-onasini chalg'itadi yoki haydab yuboradi.
Jo'jalar: Boshqa ko'p kukulardan farqli o'laroq, kanalli jo'jalar har doim ham uy egasi tuxumlarini/yoshlarini haydab chiqarmaydi. Buning o'rniga, ular uy jo'jalariga qaraganda tezroq va kattaroq bo'lib, oziq-ovqatni monopoliyaga olib, uy egasining bolalarini ochlikka olib keladi.
Rivojlanish: Jo'jalar ko'pincha uydan chiqqandan keyin ham bir necha hafta davomida ota-onalari tomonidan oziqlanadi.
Umumiy ismlar
Bo'ron qushi, To'fon qushi, Yomg'ir qushi (ho'l fasl bilan kelishi sababli), Anjir-qush, ba'zan esa "Xoch qushi".
The Channel-billed Cuckoo (Scythrops novaehollandiae) is the world's largest cuckoo and the largest brood-parasitic bird. Known for its immense, downward-curved bill and loud, raucous calls, this bird is a migratory visitor to Australia, often associated with the arrival of summer storms.
Physical Characteristics
Size: 58–65 cm in length with a wingspan of roughly 1 metre.
Appearance: Pale grey head and underparts, darker grey wings and back, and a long, barred tail.
Distinguishing Features: A massive pale, grey-and-straw-colored, downward-curved bill, and bright red skin around the eyes.
Flight Silhouette: In flight, they resemble a large, crucifix-shaped (cross-shaped) bird of prey.
Juveniles: More mottled with brown and buff plumage, a smaller, dirtier pink bill, and lacking the red eye-patch.
Habitat and Distribution
Migration: Migrates from New Guinea, Indonesia, and the Bismarck Archipelago to northern and eastern Australia between August and October, leaving for warmer climates in February or March.
Range: Extends from Western Australia, across the Northern Territory and Queensland, down the eastern coast of NSW.
Habitat: Tall open forests, woodlands, and leafy urban areas (especially where native figs are present).
Behavior and Diet
Diet: Primarily frugivorous (fruit-eating), with a strong preference for native figs, but they also consume insects, caterpillars, and occasionally the eggs and chicks of other birds.
Call: Extremely loud and raucous, often described as a "kawk" followed by "awk-awk-awk" frequently heard throughout the night during breeding season.
"Mobbing": Due to their parasitic nature, they are frequently chased and mobbed by smaller birds, particularly crows and magpies.
Development: Chicks are often fed by their host parents for several weeks even after leaving the nest.
Channel-billed Cuckoo
Video clip number - 28022613
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