<\/p>\n

\u201eUnde lipse\u015fte p\u0103unul, cioara pare pas\u0103rea cea mai frumoas\u0103.\u201d<\/em><\/strong><\/p>\n

Proverb popular rom\u00e2nesc<\/p>\n

 <\/p>\n

Romfilatelia<\/strong> continu\u0103 seria proiectelor filatelice dedicate Faunei<\/em>, una dintre cele mai apreciate tematici \u00een r\u00e2ndul colec\u021bionarilor, prin introducerea \u00een circula\u0163ie a emisiunii de m\u0103rci po\u015ftale P\u0103s\u0103ri inteligente<\/em><\/strong>.<\/p>\n

Studiul inteligen\u0163ei p\u0103s\u0103rilor a dus la rezultate ce au pus \u00een discu\u0163ie ideile preconcepute despre c\u00e2t pot acestea s\u0103 \u00een\u0163eleag\u0103 \u015fi c\u00e2t de repede se pot adapta. Un test obi\u015fnuit al inteligen\u0163ei este testul de ocolire, \u00een care o barier\u0103 de sticl\u0103 se a\u015feaz\u0103 \u00eentre pas\u0103re \u015fi un obiect dorit, cum ar fi o bucat\u0103 de m\u00e2ncare. Cele mai multe mamifere, de exemplu, pot descoperi c\u0103 obiectivul este atins doar dac\u0103 mai \u00eent\u00e2i se \u00eendep\u0103rteaz\u0103 de \u0163int\u0103. \u00cen timp ce p\u0103s\u0103rile domestice nu reu\u015fesc s\u0103 treac\u0103 acest test, multe p\u0103s\u0103ri din cadrul familiei corvidelor<\/em> sunt \u00een m\u0103sur\u0103 s\u0103 rezolve cu u\u015furin\u0163\u0103 problema.<\/p>\n

Dintre corvidele prezente \u00een \u0163ara noastr\u0103, st\u0103ncu\u0163a<\/em><\/strong> (Corvus monedula)<\/em>, ilustrat\u0103 pe timbrul cu valoarea nominal\u0103 de 2,50 lei<\/strong>, este una din cele mai mici p\u0103s\u0103ri care apar\u0163in acestei familii, fiind r\u0103sp\u00e2ndit\u0103 \u00een vestul Europei, dar se poate \u00eent\u00e2lni, mai rar \u015fi \u00een sud, \u00een Africa de Nord \u015fi Asia de Vest.<\/p>\n

Perechea se formeaz\u0103 pe via\u0163\u0103 \u015fi este foarte fidel\u0103 \u00een rela\u0163ie. Cresc anual un singur r\u00e2nd de pui de care au mare grij\u0103. Au \u00eentre ele leg\u0103turi afective puternice, care provin dintr-o inteligen\u0163\u0103 peste medie \u015fi aceste leg\u0103turi se pot manifesta \u015fi dac\u0103 sunt crescute de mici de c\u0103tre oameni.<\/p>\n

Glasul st\u0103ncu\u0163ei este considerabil mai modulat \u015fi mai variat \u00een compara\u0163ie cu cel al altor corvide<\/em>. Sunt p\u0103s\u0103ri volubile, dau senza\u0163ia c\u0103 p\u0103l\u0103vr\u0103gesc mult \u00eentre ele, fac mereu mult zgomot. F\u0103r\u0103 s\u0103-\u015fi dea mult silin\u0163a, st\u0103ncu\u0163a \u00eenva\u0163\u0103 s\u0103 imite cuvinte \u015fi alte sunete.<\/p>\n

Gai\u0163a<\/em><\/strong> (Garrulus glandarius)<\/em>, ilustrat\u0103 pe timbrul cu valoarea nominal\u0103 de 4,50 lei<\/strong>, este r\u0103sp\u00e2ndit\u0103 \u00een Europa, Africa \u015fi Asia de Vest \u015fi este o specie sedentar\u0103. Acest lucru \u00eenseamn\u0103 c\u0103 poate fi v\u0103zut\u0103 \u00een Rom\u00e2nia pe tot parcursul anului.<\/p>\n

A fost descris\u0103 pentru prima dat\u0103 de botanistul Carl von Linn\u00e9 \u00een anul 1758. Are aproximativ 35 cm \u015fi pene frumos colorate, iar anvergura aripilor m\u0103soar\u0103 55-60 cm. Gai\u0163a nu este la fel de u\u015for de observat ca \u015fi suratele ei corvide<\/em>, dat fiind c\u0103 se apropie extrem de precaut de a\u015fez\u0103rile umane. \u00cen timpul iernii, din cauza lipsei de hran\u0103, poate fi v\u0103zut\u0103 mult mai des \u00een sate \u015fi \u00een parcurile din ora\u015fe.<\/p>\n

Cioara de sem\u0103n\u0103tur\u0103<\/em><\/strong> (Corvus frugilegus)<\/em>, ilustrat\u0103 pe timbrul cu valoarea nominal\u0103 de 8 lei<\/strong>, este o mare consumatoare de nuci pe care le arunc\u0103 pe p\u0103m\u00e2nt pentru a le sparge \u015fi a le ciuguli miezul. Sunt, de asemenea, p\u0103s\u0103ri sociabile, care vie\u0163uiesc \u015fi cuib\u0103resc \u00een grupuri mari denumite colonii, fiind impresionante ca num\u0103r. Ele pot fi sedentare sau migratoare (\u00een grupuri disparate \u015fi pe direc\u0163ii diverse), \u00een func\u0163ie de temperaturile sc\u0103zute din regiunea \u00een care tr\u0103iesc \u015fi condi\u0163iile de hran\u0103.<\/p>\n

Co\u0163ofana<\/em><\/strong> (Pica Pica)<\/em>, ilustrat\u0103 pe timbrul cu valoarea nominal\u0103 de 15 lei<\/strong>, se poate \u00eent\u00e2lni \u00een regiunile de \u015fes \u015fi \u00een zonele de munte, p\u00e2n\u0103 la altitudini de 2.500 m. \u00cen compara\u0163ie cu al\u0163i membri ai familiei corvidelor, co\u0163ofenele nu sunt zbur\u0103toare puternice \u015fi din acest motiv \u00ee\u015fi petrec mult timp st\u00e2nd pe crengile unor copaci sau chiar pe sol. \u00cen timp ce \u00ee\u015fi caut\u0103 hrana, co\u0163ofana scoate ni\u015fte sunete puternice, dar, cu toate acestea \u015fi \u00een ciuda dimensiunilor sale, este deseori fug\u0103rit\u0103 de p\u0103s\u0103ri mai mici.<\/p>\n

Datorit\u0103 penajului s\u0103u caracteristic, alb cu negru, este u\u015for recunoscut\u0103 chiar de cei care nu sunt foarte buni cunosc\u0103tori de p\u0103s\u0103ri. Co\u0163ofana este o pas\u0103re diurn\u0103 ce \u00eencepe s\u0103 fie activ\u0103 pu\u0163in \u00eenainte de r\u0103s\u0103ritul soarelui \u015fi \u00ee\u015fi \u00eenceteaz\u0103 activitatea la apus.<\/p>\n

Corbul<\/em><\/strong> (Corvus corax),<\/em> ilustrat pe \u201eplicul prima zi\u201d, a dovedit abilit\u0103\u0163i tactice \u00een urma unui studiu \u00een care cercet\u0103torii au pus sub observa\u0163ie o popula\u0163ie de corbi captivi. Ace\u015ftia aveau dou\u0103 metode de supravie\u0163uire: fie \u00ee\u015fi creau propriile ascunz\u0103tori cu m\u00e2ncare, fie pr\u0103dau ascunz\u0103torile altor corbi. \u201eStr\u00e2ng\u0103torii\u201d\u015fi-au modificat drastic comportamentul \u00een momentul \u00een care au observat \u201epr\u0103d\u0103torii\u201d post\u00e2ndu-se pentru a-i urm\u0103ri p\u00e2n\u0103 la ascunz\u0103tori. Un corb \u201estr\u00e2ng\u0103tor\u201d va alege alt\u0103 loca\u0163ie pentru ascunz\u0103toarea sa, \u00een care va duce cantit\u0103\u0163i mici de m\u00e2ncare, pe care le va l\u0103sa nep\u0103zite pentru a convinge corbul \u201epr\u0103d\u0103tor\u201d c\u0103 a g\u0103sit ascunz\u0103toarea ini\u0163ial\u0103. Acesta din urm\u0103 este capabil s\u0103 \u00ee\u015fi disimuleze \u015fi el inten\u0163iile, \u00eencerc\u00e2nd s\u0103 imite comportamentul unui \u201estr\u00e2ng\u0103tor\u201d, dar urm\u0103rind s\u0103 descopere ascunz\u0103toarea acestuia.<\/p>\n

Aceste rezultate sugereaz\u0103 c\u0103 to\u0163i corbii, indiferent dac\u0103 ace\u015ftia ac\u0163ioneaz\u0103 \u00een calitate de \u201estr\u00e2ng\u0103tori\u201d sau de \u201epr\u0103d\u0103tori\u201d, sunt capabili de a re\u0163ine informa\u0163ii cu privire la inten\u0163iile lor \u015fi, prin urmare, s\u0103 manipuleze aten\u0163ia altor p\u0103s\u0103ri, fie pentru a preveni sau pentru a ob\u0163ine avantaje.<\/p>\n

 <\/p>\n

Romfilatelia mul\u0163ume\u015fte Societa\u0163ii Ornitologice Rom\u00e2ne<\/em><\/strong> \u015fi domnilor fotografi Octavian Chende, Cristian Mihai \u015fi George Avanu <\/em><\/strong>pentru sprijinul documentar acordat<\/em><\/strong> la realizarea acestei emisiuni de m\u0103rci po\u015ftale.<\/em><\/strong><\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u201eUnde lipse\u015fte p\u0103unul, cioara pare pas\u0103rea cea mai frumoas\u0103.\u201d Proverb popular rom\u00e2nesc   Romfilatelia continu\u0103 seria proiectelor filatelice dedicate Faunei, […]<\/p>\n","protected":false},"featured_media":2052228,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"product_cat":[2648,2618],"product_tag":[],"class_list":{"0":"post-2052227","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-2648","7":"product_cat-colectii-anuale","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","12":"first","13":"instock","14":"taxable","15":"shipping-taxable","16":"product-type-grouped","17":"add-to-wishlist-before_image"},"_links":{"self":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/product\/2052227"}],"collection":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=\/wp\/v2\/media\/2052228"}],"wp:attachment":[{"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2052227"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=2052227"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/romfilatelia.ro\/romagazin\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=2052227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}