A CANBERRA Ornithologist Group report, “Lengthy-Time period Tendencies in ACT Woodland Birds 1998-2019”, reveals declining tendencies in 32 hen populations.
For greater than 21 years the Canberra Ornithologist Group has collected information from throughout 142 grassy woodland places, monitoring every website 4 occasions a yr.
The outcomes point out declining tendencies for 32, largely small, hen species, 16 of that are considered frequent and woodland dependent birds.
These embody Weebill, Gray Fantail, Very good Fairy-Wren, Rufous Whistler and three species of Thornbills.
Alternatively, the outcomes confirmed vital will increase of large-bird species, many frequent, habitat generalists, tailored to city environments and birds related to degraded woodland communities – together with Pied Currawongs and magpies.
There was additionally an surprising lower within the “cover feeder” teams, which incorporates insectivores and nectar feeders reminiscent of Honeyeaters.
The pattern for the Noisy Miner, an aggressive, colonial native honeyeater confirmed a six-fold enhance, probably the most of any species within the evaluation.
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Ian Meikle, editor