AFTER MINUS FIVE DEGREES: MT ROGERS IN WINTER

 Being on Mt Rogers by 09.20 was a delayed reaction to exploring a cold start to 8th June, and, of course, our frosts are minimal compared to many other places. Last night the Field Naturalists enjoyed a ‘trip’ to Kamchatka where’s there’s an amazing mix of volcanoes and snow-falls of 10 metres and more! Part of the delay was caused by my watching a party of about 30 Silvereyes flitting between feasting on garden-based Privet berries and preening and sunning themselves in a nearby Bottlebrush. We’ve also had several “donations” of purple-poo here, on the concrete, suggesting that Currawongs are also enjoying berries from this highly invasive and allergenic species. Comparably there were photos of large purple “dollops” alongside paw-prints from the Kamchatka powerpoint file, linking Brown bears’ summer diet with harvested berries as a change from salmon-fishing.       

The danger from bears there is real, whereas hunters on Mt Rogers are mostly raptors. Black shouldered kites, Brown Goshawks, Australian Hobbies and Kestrels are the raptors seen recently. It’s worthwhile looking up when there’s a magpie-commotion as they could be protesting at these occasional visitors being in their territory. There are mice around again in some numbers and I found one under a sheet of galvanised left from a disused cubby.

About 50 m in from the Wickens carpark there are currently two wonderful cubbies. One’s a cone and the other a domed construction using gathered fallen branches. One is decorated with moss which may die if not touching soil and nearby is a circle of the decorated pebbles the Guides used to identify their now-flourishing plantings from August 2010. Purists might deplore the alterations caused by the builders but let’s applaud the creativity and artistry of the cubbies’ industrious makers.

Professionals from EnviroAg have altered the expectations of large clusters of Blackberry and Honeysuckle by spraying them with relevant herbicides. Being paid through a grant organised by Ginninderra Catchment Group they next spot-sprayed areas of African Lovegrass (ALG) and isolated tussocks of this monoculture-forming grass. The sprayers’ attention to detail is impressive as a quicker method would have been to boom spray the larger expanses using flupropanate, but that herbicide is lethal to other plants and is residual. Steve has complemented the spraying by many hours of volunteer spot-spraying and ALG seed-gathering alongside narrower tracks. He and Ann have each completed 8 hours of Chemcert training. Their time was, again, voluntary but the course was paid for out of the Parks and City Service’s budget — your rates and taxes at work in subtle ways.

Lorraine and I did some more ALG beheading & seed-bagging at the last working-bee. Margaret and Chris have worked on mattocking-out Mullein or Verbascum thapsus rosettes in an area they’d noticed. A week before, Flemming, Heather, Ivan, Sue and I worked on ALG and berried shrubs near the tanks’ main gate. Several volunteers apologised, but our volunteer landcarers’ enthusiasm always shows through as people help out when they can and they don’t feel guilty when their other lives intervene!

Ann, Steve and I have begun a process of naming the various places, tracks and paths on Mt Rogers so that we can better record activities and plan future projects. It would be interesting to gather-together all the names we each use for various parts of the reserve and probably quite amusing to hear the origins of those names. Perhaps that’s an activity for a white-board or newer technology next time we have an explorer day or a similar gathering? We volunteers will also be mapping where the native vegetation is of high and medium quality and conversely where it’s largely lacking. This data will inform the land’s managers and the Mowing and Fire Management units and lead to better management for conservation, rather than just managing Mt Rogers as an infrastructure and asset-protection area.

My after-frost walk today was really encouraging as I came across a Mixed Feeding Flock (MFF) of ten different small bird species. There were Scarlet robins, many Wrens and, even better, at least two Speckled Warblers. None seemed upset by my presence as they each sought their specific insectivorous or invertebrate food in a different layer of the bush. The warblers specialise as ground-feeders but prefer to forage through shortish grass. They are ground-nesters also making them vulnerable to predation by foxes and suburban cats. The species is in decline as a result and from habitat alteration.

The area the MFF was foraging in is part of the burnt section. At this time of the year the results of the Hazard Reduction Burn look promising in that relatively few introduced grass and weed species are present. Maybe the landcarers can annex this woody grassland area to their “attention-to-detail” program and continue to keep even trivial weeds under control.

Not far away is a recently fallen-tree which is still hanging on to life.  It was a significant eucalypt in that birds used it as a vantage point and a stop-over between the houses’ gardens and the reserve. The perhaps 150 year-old tree had become isolated by clearing-for-mowers policies and the loss of its shrub layer. It was probably caught by a gust of strong wind. Almost immediately “vultures“ swooped on it and took away branches presumably for firewood.  Let’s hope the rest of the tree escapes their chainsaws and we can watch as the specialised epicormic buds produce vertical branches from the horizontal trunk; the indomitable spirit of Australian survival.

Ann continues to add material to the blogsite she’s set up for us.  If you check out newsletters written at about the same time last year there’s comparisons to be made!

THE NEXT FOURTH-SUNDAY WORKING-BEE WILL CONCENTRATE ON THE BUSH AREA WEST OF SCHEY AND McNOLTY PLACES. THIS WILL BE ON 24THJUNE FROM 09.00am.

We will be on a seek-and-destroy-mission for Cotoneaster bushes which remain under trees and in the dense vegetation of the gully that drains into the New North Drain. There’s also plenty of Microlaena seed we can harvest and scatter the thatch lower down the gully, hoping it will out-grow the introduced grasses.

Keep up the walking and watching!



Rosemary
Mt Rogers Landcare Group  08.06.12.
6258 4724


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