| 41. | "We've been going tit for tat with them.
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| 42. | The two countries routinely engage in tit-for-tat actions.
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| 43. | "This isn't a tit for tat,"
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| 44. | The teams went tit-for-tat looking for the winner.
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| 45. | Another example of sexual dichromatism is that of the nestling blue tits.
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| 46. | Birds breeding in the carr woodland include the local willow tit
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| 47. | Old willow tit holes may be used and enlarged further.
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| 48. | The black-crested tit is now usually included in this species.
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| 49. | Eurasian blue tits use songs and calls throughout the year.
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| 50. | The great tit has generally adjusted to human modifications of the environment.
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