{"id":1267,"date":"2019-03-08T11:27:09","date_gmt":"2019-03-08T10:27:09","guid":{"rendered":"http:\/\/agora.xtec.cat\/ies-baldiri\/?p=1267"},"modified":"2019-03-08T11:31:51","modified_gmt":"2019-03-08T10:31:51","slug":"cens-daus-i-anellament-docells","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ies-baldiri\/eso\/cens-daus-i-anellament-docells\/","title":{"rendered":"Cens d’aus i anellament d’ocells"},"content":{"rendered":"

Com cada any, en el marc del projecte Alumnes Gestors del Territori, gr\u00e0cies al Servei d’Educaci\u00f3 Ambiental de l’Ajuntament del Prat de Llobregat, el 27 de febrer hem fet l’activitat del CENS d’AUS, adre\u00e7ada als delegats verds de 1r i 2n d’ESO del nostre centre. Tamb\u00e9 farem un ANELLAMENT D’OCELLS, juntament amb altres delegats i delegades verdes d’altres centres.<\/p>\n

Aquest any hem gaudit molt. Altres anys observaven i contaven unes esp\u00e8cies determinades d’aus per saber com es registren i com funciona el comptatge dels individus que venen als Espais Naturals del Riu, en concret a la Llacuna de Cal Tet. Per\u00f2 aquest cop han ensenyat quines altres accions es fan respecte les aus d’aquest espai. S’agafen per anellar, es pesen, es mesuren i es calcula l’edat. D’aix\u00f2 se’n fa tamb\u00e9 un registre per saber si venen m\u00e9s o menys cada any.
\n\u00c9s molt important tenir totes aquestes dades per protegir aquells espais que serveixen a les aus migrat\u00f2ries com a descans i font d’aliment.
\nVam veure ben a prop la mallarenga cua llarga, un ocellet d’uns 7 grams que ens visita a l’ivern. Tamb\u00e9 el mosquiter com\u00fa que ve cap a la primavera i pesava uns 6 gramets! I el rossinyol bord, que el tenim tot l’any i era el m\u00e9s gros, amb 15 grams! S\u00f3n petitons, per\u00f2 tamb\u00e9 tenen els ossos buits, com tots els ocells, per tenir un pes m\u00e9s petit i poder volar millor.<\/p>\n\r\n\t

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