Violet Mackerel's Natural Habitat by Anna Branford
A character series for 6-9s featuring the funny, quirky Violet Mackerel - a girl with a mission to think outside the box. After making friends with an indoor sparrow at the shopping centre, Violet develops her "Theory of Helping Small Things" (if you do something to help a small thing, it will find a way of helping you back). Her sister Nicola (who is always grumpy) is working on a natural science project, so Violet decides to study a ladybird called Small Gloria. When things turn disastrous for Nicola, Violet and Small Gloria, they put their pea brains together and find out about natural habitats.