Birds of prey make their living in different ways; Kestrels are fond of mice, Peregrines are fond of pigeons, Brown Falcons are fond of snakes. Hunting technique are appropriate to the creatures hunted.
Harriers go about their business fairly low over open country with wings upswept. In Australia we have a couple of members of the guild, Swamp Harrier and Spotted Harrier. One prefers wetter habitats the other drier habitats.
The dry plains around my home seem ideal for Spotted Harrier but for all that they are only occasional visitors. I was looking for quail when I encountered this one, so was he probably.
When looking for mice in the grass slow flight is an advantage. Kestrels and Black-shouldered Kites can hover. They are both smaller birds, there is only so much energy in a mouse and hovering is expensive. The equation works for the small birds but hovering is too expensive for harriers to undertake except very briefly.
So slow flight it is. The upswept wings contribute to lateral stability, very helpful when flying close to stall speeds. If a wing stalls it drops relative to the other wing and the bird as a whole side slips to the affected side. Under these circumstances the lower wing develops more lift than the upper wing and tends to restore the bird to level flight (at a slightly lower altitude).
The upward angulation of the wings is called dihedral and it can be seen in this photo of our gliding harrier …
I’ve been impressed in the past by how close you can get to birds when you’re largely submerged in a waterhole. I took my camera with me when I went for my morning dip (very carefully I might add). Not a bad start to the new year …
The birding in Kidepo was rich. Bird photography snatched on the run could never do it justice but here are a few of the more cooperative species.
To describe the Stone Partridge as a cooperative species is quite a stretch but I was particularly lucky with this group. It would be nice to improve on this shot but it would require the investment of quite a lot of time.
Some birds are residents, some are migrants. Some birds just wander around in response to conditions, none of them care a fig about state boundaries. So if you hang out near the borders of your state or territory your list will grow.
I live in the western half of Victoria where sooner or later you can expect to find Budgerigars, Diamond Doves, Black and Pied Honeyeaters and other occasional visitors. These are birds that spill out of the more arid interior.
Over in the east of the state their counterparts are birds of the east coast forests that wander around the corner from New South Wales, usually in summer. There have been reports recently of a few congregating in one particular front yard in the little town of Metung. It seemed a good time to put in some time in the Gippsland Lakes region. The weather gods thought it might be a good time to visit the same area.
The Fig Trees of Mairburn Road deserve to be as famous as the Flame Trees of Thika. In the space of half an hour I saw Koel, Channelbill Cuckoo, Topknot Pigeon, White-headed Pigeon and Figbird. All in or close to two enormous Morton Bay Figs thoughtfully planted as ornamentals in somebody’s front garden. Thanks, mate.
These three were new to my Victorian list …
You can’t spend all your time pointing your binoculars and telephoto lens into fig trees in people’s front gardens. You have to consider the Grevilleas in their back gardens …
Well I’m back from Broome, life is back to normal. I was wondering how to conjure up a post from the ordinary, the humdrum. It occurred to me to post some recent photos of Australian Reed-warbler.
For those of you who enjoy the natural history side of the blog, there is an excellent blog run by Geoff Park called Natural Newstead. Geoff limits his observations to the area around his home, also in the Victorian Goldfields, about 40km from mine. It’s well worth a visit.
Just as I was delving in my catalogue Geoff posted this …
I’ve been trying for years to get some decent images of Australian Reed-warblers, especially that iconic shot of one perched sideways on the stem of a reed. It remains an ongoing project.
These are absolutely magnificent creatures. Females are larger than the males and may have a wingspan up to 2.2 metres (7 feet 2 inches). They are found along the seashores and major waterways of Australia, New Guinea, the Indonesian and Malayan archipelago, Thailand, around the Bay of Bengal to India and Sri Lanka. They mainly eat fish which they catch in their talons or find dead but they are not averse to other animals such as turtles, sea-snakes and birds.
This pair let me get fairly close before they took off. They are generally pretty wary.