Mary Allen
Muaj nyob ib ncig ntawm 4,000 ntau hom songbirds. Lub npe nrov tshaj plaws yog jay, wren, tits, finches, larks, swallows, thrushes, thiab starlings. Sparrows kuj yog songbirds. Lub tsev sparrow kuj hu ua sparrow.
Songbirds muaj lub ntsws tshwj xeeb: lawv muaj zog heev thiab tseem me me. Txawm nyob rau qhov siab siab, songbirds tseem tuaj yeem tau txais oxygen los ntawm huab cua. Lawv muaj cov hnab cua loj hauv lawv lub cev kom lawv tuaj yeem txias lawv cov leeg.
Songbirds ya tau zoo heev. Lawv muaj lub cev pob txha. Feem ntau cov pob txha yog hollow sab hauv, nrog rau cov beak. Ntawm ib sab, qhov no ua rau muaj qhov hnyav dua. Ntawm qhov tod tes, nws lub suab nrov zog vim yog cov kab noj hniav. Qhov no zoo ib yam li guitar lossis violin.
Lub npe songbird tsis tsuas yog siv rau txhua tus noog uas tshwj xeeb tshaj yog hu nkauj. Tag nrho cov nkauj noog muaj feem cuam tshuam rau ib leeg. Lawv tuaj hauv tebchaws Australia txog 33 lab xyoo dhau los. Ntau hom tau hloov zuj zus los ntawm evolution. Los ntawm Australia, lawv tau kis thoob plaws ntiaj teb.