Animal Riddlebees

See if you can solve these riddlebees!

My first is in fish and also in chips;
my second's in mouth but not in lips;
my third is in ache but not in pain;
my fourth is my third all over again;
my fifth is in pupil but isn't in class;
my whole is a beast that feeds on the grass.
Who am I?

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sheep

My first is in coat but not in hat;
My second's in paw but not in cat;
My third you find in both lumpy and flat.
Who am I?

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owl

My first is in both locks and keys;
My second is in waves, not seas;
My third is in both rain and damp;
My fourth is in train but not in tramp.
Who am I?

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swan