{"id":6504,"date":"2022-02-02T16:58:51","date_gmt":"2022-02-02T14:58:51","guid":{"rendered":"http:\/\/wildtravel.ro\/bird\/cufundar-cu-cioc-alb-gavia-adamsii\/"},"modified":"2023-11-12T09:49:31","modified_gmt":"2023-11-12T07:49:31","slug":"cufundar-cu-cioc-alb-gavia-adamsii","status":"publish","type":"bird","link":"https:\/\/wildtravel.ro\/ro\/bird\/cufundar-cu-cioc-alb-gavia-adamsii\/","title":{"rendered":"Cufundar cu cioc alb (Gavia adamsii)"},"content":{"rendered":"<p><strong>Cufundarul cu cioc alb<\/strong> (<em><strong>Gavia adamsii<\/strong><\/em>) este o pas\u0103re migratoare acvatic\u0103 din familia gaviidelor, ordinul gaviiformelor, care cuib\u0103re\u0219te \u00een regiunea arctic\u0103 din Rusia, Alaska (SUA) \u0219i Canada \u0219i ierneaz\u0103 pe mare \u00een apropierea \u021b\u0103rmului, \u00een principal \u00een largul coastelor vestice a Norvegiei, vestului Americii de Nord (de la sudul Alask\u0103i spre sud p\u00e2n\u0103 \u00een Insula Vancouver \u0219i nord-vestul statului Washington) \u0219i pe coasta estic\u0103 a Asiei (Japonia, Coreea \u0219i China).<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-6492 alignleft\" src=\"http:\/\/wildtravel.ro\/wp-content\/uploads\/2022\/02\/a4.JPG\" alt=\"\" width=\"401\" height=\"201\" \/><\/p>\n<p>Cuib\u0103re\u0219te \u00een special \u00een b\u0103l\u021bile sau lacurile cu ap\u0103 dulce din tundr\u0103, mai rar pe \u021b\u0103rmurile arctice aflate la altitudine joas\u0103, r\u00e2uri \u0219i estuare, evit\u0103 de obicei \u021binuturile \u00eemp\u0103durite. Popula\u021bia global\u0103 este considerat\u0103 c\u0103 num\u0103r\u0103 16.000-32.000 de indivizi, din care 3.000-4.000 \u00een Alaska, 20.000 \u00een Canada \u0219i 8.000 \u00een Rusia. Apari\u021biile accidentale sunt \u00eenregistrate rar pe teritoriul SUA \u0219i \u00een mai multe \u021b\u0103ri din Europa. Pe 19 ianuarie 2018 ornitologul rom\u00e2n J\u00f3zsef Szab\u00f3 a identificat o apari\u021bie accidental\u0103 a acestui cufundar pe r\u00e2ul Olt. Este cel mai mare cufundar, av\u00e2nd o lungime de 76-91 cm \u0219i o greutate de 4050\u20136400 g; anvergur\u0103 aripilor 137-152 cm. Sexele sunt asem\u0103n\u0103toare. Adultul \u00een penajul nup\u021bial (prim\u0103vara \u0219i vara) are capul \u0219i g\u00e2tul negricioase cu un luciu purpuriu \u0219i alb\u0103strui, pe por\u021biunea superioar\u0103 a g\u00e2tlejului are un colier din 4-6 pete albe, iar pe laturile g\u00e2tului are un gulerul v\u0103dit din 10-12 linii paralele albe.<\/p>\n<p>P\u0103r\u021bile superioare sunt negricioase, fiecare pan\u0103 cu o pat\u0103 alb\u0103 mic\u0103, pe penele scapulare aceste pete formeaz\u0103 r\u00e2nduri mari de p\u0103trate predominant albe; tectricele supraalare negricioase p\u0103tate cu alb, partea inferioar\u0103 a aripii mai palid\u0103; coada negricioas\u0103. Partea inferioar\u0103 a g\u00e2tului are linii longitudinale negre \u0219i albe, cele albe formeaz\u0103 r\u00e2nduri de pete mici pe laturi, por\u021biunea inferioar\u0103 central\u0103 a p\u0103r\u021bii anterioare a g\u00e2tului \u0219i toat\u0103 partea inferioar\u0103 pur albe, cu excep\u021bia unui negru pe tectricele subcodale. Ciocul lung este galben deschis sau albicios de culoarea filde\u0219ului; unghiul gonidial al ciocului (unghiul b\u0103rbiei) este pronun\u021bat, maxila adesea dreapt\u0103, prin urmare ciocul pare \u00eentr-o oarecare m\u0103sur\u0103 curbat \u00een sus; c\u00e2nd \u00eenoat\u0103, \u021bine ciocul \u00eendreptat \u00een sus \u0219i aceast\u0103 curbur\u0103 se accentueaz\u0103. Picioarele sunt cenu\u0219iu-brunii, cenu\u0219iu deschis pe jum\u0103tatea interioar\u0103. Irisul este ro\u0219u.<\/p>\n<p>Adultul \u00een penajul postnup\u021bial (toamna \u0219i iarna) are calota \u0219i ceafa brun-cenu\u0219iu \u00eenchise, \u00een jurul ochiului alb-cremoas\u0103, p\u0103r\u021bile superioare sunt cenu\u0219iu-brunii, cu un desen vag de p\u0103trate pe penele scapulare \u0219i cu pete albe pe tectricele alare; partea inferioar\u0103 a g\u00e2tului brunie, form\u00e2nd un guler vag definit \u0219i cu \u00eentreruperi; b\u0103rbia, partea inferioar\u0103 \u0219i anterioar\u0103 a g\u00e2tului albicioase, partea central\u0103 a pieptului \u0219i abdomenul albe. Subadultul iarn\u0103 este asem\u0103n\u0103tor cu adultul \u00een penajul postnup\u021bial, dar nu are pete albe pe tectricele aripilor. Se hr\u0103ne\u0219te mai ales cu pe\u0219ti, inclusiv cu zgl\u0103voace, cod mic de Pacific \u0219i cod de Atlantic; dar consum\u0103 \u0219i crustacee, molu\u0219te \u0219i viermi marini. Se cufund\u0103 adesea sub ap\u0103 unde prinde pe\u0219tii dup\u0103 o urm\u0103rire. Este o specie solitar\u0103. Cuibul format dintr-o gr\u0103mad\u0103 de materii vegetale este construit l\u00e2ng\u0103 marginea apei, de obicei pe malul unui lac cu ap\u0103 limpede, cu o vizibilitate bun\u0103 a zonelor \u00eenconjur\u0103toare. Reproducerea \u00eencepe dup\u0103 topirea ghe\u021bii, \u00een principal la \u00eenceputul lui iunie. Ponta const\u0103 din dou\u0103 ou\u0103. Puii au puful brun \u00eenchis, mai palid pe abdomen. Strig\u0103tele de contact \u0219i alarm\u0103 sunt puternice, url\u0103toare sau pl\u00e2ng\u0103toare, \u0219i se aud la o distan\u021b\u0103 de p\u00e2n\u0103 la opt kilometri.<\/p>\n<p>O singura observatie in zona Dobrogea, in bazinul de langa Navodari in 2022.<\/p>\n<p>foto: Mihai Baciu<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cufundarul cu cioc alb (Gavia adamsii) este o pas\u0103re migratoare acvatic\u0103 din familia gaviidelor, ordinul gaviiformelor, care cuib\u0103re\u0219te \u00een regiunea arctic\u0103 din Rusia, Alaska (SUA) \u0219i Canada \u0219i ierneaz\u0103 pe mare \u00een apropierea \u021b\u0103rmului, \u00een principal \u00een largul coastelor vestice a Norvegiei, vestului Americii de Nord (de la sudul Alask\u0103i spre sud p\u00e2n\u0103 \u00een Insula [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6505,"template":"","meta":{"_acf_changed":false},"categories":[],"tags":[],"birdwatching":[],"class_list":["post-6504","bird","type-bird","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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