Sparrows do sometimes feed on the petals of flowers like primroses and crocuses. The only option I can think of is to put bird feeders in the area so that the sparrows are tempted to go for a more exciting menu. Not being a sparrow myself I'm assuming that flowers are not a delicacy. I could be wrong.
My grandfather used to use twigs with black cotton and silver milk bottle tops. I've used a children's windmill to keep birds off my pots of seedlings.
After the primroses, the polyanthus and the Wisteria. The blackbirds are sufficiently territorial to keep house sparrow numbers to a civil level but the sparrows just ignore the cat, unfortunately.
robert
crazylady
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