Predators and the food chain and preventing the suburban extinction of small native creatures

“It is springtime here in Mount Waverley, close to the Reserve. The air is filled all day with the anguished squawks of smaller birds vainly trying to divert enormous crows from taking babies from their nests. Pairs of noisy miners are squawking at crows; by dusk, they must be exhausted. In our reserve, the Australian raven terrorises the other birds and dive-bombs the smaller dogs. The bellbirds keep their portion of the reserve, and will not let other birds colonise their areas.

“Every spring there are fewer little birds. Wrens and tits, which were quite plentiful in our garden twenty years ago, seem to have gone. Crows can be seen sometimes flying down the street with little birds in their beaks. We had no crows twenty years ago here. They are out of their ecological niche, whether native or exotic. The little birds have an ecological function in getting rid of noxious insects and other garden pests and these proliferate without them.

“Surely small birds have enough predators with cats, foxes and cars. Surely there is no need to protect all of the growing hordes of native crows or Australian ravens, on the grounds they have an important role in the food chain and they are native.  Sourced through from:

GR:  Habitat destruction, invasive species introductions are parts of the actions we have taken to begin Earth’s sixth mass extinction.


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