By Niven McCrie, Richard Noske
* New and exact details at the neighborhood distribution of the entire region’s birds, with a map for every frequent species
* New and actual info at the seasonal prevalence and breeding cycle of those birds
* unique pictures of just about all known species, with photos of nests and eggs or younger of chosen species
* An annotated checklist of vagrant species
Birds of the Darwin Region is the 1st finished remedy of the avifauna of Darwin, a urban positioned in Australia’s monsoon tropics, the place seasons are outlined by means of rainfall instead of by way of temperature. With its mangrove-lined bays and creeks, tidal mudflats, monsoon rainforests, savannah woodlands and freshwater lagoons, Darwin has retained all of its unique habitats in near-pristine , and is domestic or host to 323 chicken species. not like different Australian towns, it has no demonstrated unique fowl species.
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Extra info for Birds of the Darwin region
Ashley Carlson Having more in common with swans and geese than the ‘true’ ducks, the Whistling Ducks have only a single moult each year. The male and female, which apparently mate for life, show little or no sexual dimorphism and share the nest building, incubation of the eggs and care of the young. While there are clear similarities between Plumed and Wandering Whistling Ducks, one of the more significant differences is in feeding; while Wandering feed almost entirely in water, and commonly during the day, Plumed feed mostly on land, and at night.
Counts during the 1990s and 2000s showed the highest mean number was in October, but there was considerable variation in numbers between years. From 1974 to 1986, the maximum number counted in the Darwin region was 170 birds, in November 1978,13 but in October 2002 1250 birds were recorded at Leanyer SP, and 1000 were present at McMinns Lagoon. 29 Wandering Whistling Duck Dendrocygna arcuata RANGE: largely tropical Australia, NG, Philippines and Indonesia. HABITATS: wetlands. STATUS: common resident.
By 1980 numbers had recovered to levels comparable to those before the decline,10 and subsequent research, between 1980 and 1988 at Kapalga, Kakadu NP, showed that buffalo trampling and grazing influenced the location of nests, but not their numbers. It was found that the decline was more likely due to a combination of fire damage to floodplains and poor rains. Indeed, nesting studies on the Mary River during 1988–9311 38 J F M A M J J A S O N D revealed that the density of nests fluctuates markedly from year to year, almost failing completely in El Niño years, and depends on the time of the onset of the Wet season.