Three statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All crows are parrots. All eagles are parrots. All parrots are birds. Conclusions: I. No crow is a bird. II. Some birds are eagles. III. All birds are crows.

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Step 1: Analyze the statements: - All crows are parrots means every crow is included in parrots. - All eagles are parrots means every eagle is included in parrots. - All parrots are birds means every parrot is included in birds. Step 2: From these, we can infer: - Since all crows are parrots and all parrots are birds, all crows are birds. - Since all eagles are parrots and all parrots are birds, all eagles are birds. Step 3: Evaluate conclusions: I. No crow is a bird. This contradicts the inference that all crows are birds. So, conclusion I does not follow. II. Some birds are eagles. Since all eagles are birds, some birds are indeed eagles. So, conclusion II follows. III. All birds are crows. This is not supported; only parrots are birds, and crows are a subset of parrots, so not all birds are crows. So, conclusion III does not follow. Therefore, only conclusion II logically follows.

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