| 31. | Migratory songbirds can be difficult to track by conventional methods like banding.
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| 32. | He was an authority on the evolution of songbirds'vocal mechanisms.
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| 33. | There may be fewer songbirds and swamps, fewer forests and meadows.
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| 34. | The falloff in songbird populations and woodpeckers also remains an annual concern.
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| 35. | A baby songbird doesn't emerge from the egg singing perfectly.
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| 36. | Songbirds chirped amid the bougainvillea as the peasants sang and played guitars.
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| 37. | Four of these are sung by veteran songbird Latha Mangeshkar.
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| 38. | They feared migrating finches would infect songbirds in the Tropics.
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| 39. | It is one of the smallest songbirds in North America.
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| 40. | Hawkeye and Songbird then formed a second group of Thunderbolts.
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