RAZNOLIKOST PTICA
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RAZNOLIKOST PTICA. – parenje – svadbeno ruho, glasanje, udaranje krilima, poskakivanje. – gnijezda – iz različitoga materijala. – potomstvo – briga do osamostaljivanja. lastavica. – selice – divlja patka, lastavica, roda, prepelica i dr. vrabac. crni kos. sjenica.

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lastavica poskakivanje

– selice – divlja patka, lastavica, roda, prepelica i dr.


vrabac poskakivanje

crni kos

sjenica

– stanarice – vrabac, sjenica, kos, vrana, svraka


bjeloglavi poskakivanje

sup

– grabljivice – svinut kljun, oštre pandže, dobar vid


– močvarice – duge noge, dug kljun, dug vrat poskakivanje– prilagodba – na stanište, hranjenje, godišnje doba…


PODRIJETLO PTICA poskakivanje

– predci praptice – srodnici dinosaura

– fosil praptice – obilježja gmazova – kosti nisu lagane

– zubi u čeljustima – pandže na krilima – dug rep s kralješcima – obilježja ptica– perje

– prednji udovi preobraženi u krila – kljun


– važnost ptica – hrana štetni kukci, miševi i poskakivanje

drugi sisavci štetni u poljima

– domaće ptice – čovjek uzgaja radi mesa, jaja, perja


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