Clever Crows
From time to time we see the clever antics of birds and animals featured on television programmes. These birds and animals have usually been trained to do these clever, sometimes cute tricks.
In their natural state birds can be even smarter. The humble crow has long been known here in Australia as being very cunning, often stealing eggs from domestic fowl sheds, much to the annoyance of the owners of the home chooks.
A report from The Times Online service states these interesting things about crows and their cleverness:
CAW! THAT’S SMART
UPDATE:
Debbie has left an interesting comment. I decided to copy it into the main body of the text here:
There is a golf course across the road from my block, when I moved in I thought the local golfers were very poor shots as there were heaps of golf balls on my block, I used to pick them up & give them back to the golf club & thats when I learnt about ‘crow eggs’ – it seems the crows steal the balls thinking they are eggs & drop them from height to break them. They have been known to swoop in & take the ball while the game is in play. Daft buggers!
Thanks for that Debbie
Something to Crow About?
This posting is about a news item from Tokyo, Japan. It seems that the local Crows are causing something of a problem.
The Times June 15, 2006 Crows hack into internest
TOKYO’S futuristic image as the world’s most technologically advanced broadband internet-enabled city is under attack from a vicious but decidedly low-tech foe: urban-dwelling jungle crows.Their destructive and unpredictable behaviour during the annual May to June mating season is always highly problematic for the Japanese capital. But this year the aggressive ink-black birds have created a new headache by developing a seemingly insatiable taste for fibre-optic internet cable.
Tokyo has become a victim of its own rush to go broadband. In the past six weeks, hundreds of homes and offices have reportedly been left without high-speed internet service after the crows discovered that broadband cable can be pecked into usable strips more easily than power cables or telephone copper wire ever could. Crows have discovered that the broadband cables, which are strung from telegraph poles across Tokyo, are the perfect consistency for building nests.
To read the full article click here.
Birds of Geranium
Last weekend we attended a native plant sale at Geranium. This is a small town of only about 80 residents. It is about an hour drive from Murray Bridge and is situated in the heart of the Murray Mallee. It is set in a wheat and sheep farming district and so much of the land has been cleared for this purpose. Along the road sides, however, there is a rich remnant vegetation strip and this provides a reasonably adequate habitat for a range of mallee loving birds, especially when it is in flower.
Honeyeaters
The area is dominated by honeyeaters. Over the last decade I have recorded the following honeyeater species in or near Geranium:
Red Wattlebird
Brown Headed Honeyeater
New Holland Honeyeater
Singing Honeyeater
White Plumed Honeyeater
White Eared Honeyeater
Yellow Plumed Honeyeater
Spiny Cheeked Honeyeater
Purple Gaped Honeyeater (rare)
Raptors
The common birds of prey include the Black Shouldered Kite, Nankeen Kestral, Little Eagle and Australian Hobby. I am not sure of the status of the magnificent Wedge Tailed Eagle in this district. Down through the years since settlement this species has been seen in a negative light by many farmers who have shot them to prevent loss of lambs from their sheep flocks.
Pigeons
The Crested Pigeon is very common throughout the region as is the Common Bronzewing Pigeon where the habitat is suitable. The delightful tiny Peaceful Dove must also occur in this region but I have not personally recorded it. Around the town, especially the wheat storage silos, the introduced feral Rock Pigeon is present in the hundreds. They are also present around farm sheds.
Parrots
The most common parrot in this area would have to be the Galah. Flocks of hundreds can often be observed throughout the Murray Mallee districts. Little Corellas may also be present though I have not seen any near Geranium. The large Yellow Tailed Black Cockatoo may also be a vagrant but not resident due to a lack of suitable food trees. Sulpher Crested Cockatoos may also occur in this district but I haven’t seen any. Purple Crowned Lorikeets are common, and Rainbow Lorikeets have been recorded. Other parrots resident in or near Geranium include:
Mallee Ringnecks
Red Rumped Parrots
Cockatiel
Blue Bonnets
Blue Winged Parrots
Budgerigars
Mulga Parrots
Other Birds
My total number of species for this area stands at 56 species. Here is a list of some other birds I have recorded in the district:
Willie Wagtail
Grey Fantail
Restless Flycatcher
Hooded Robin
Golden Whistler
Rufous Whistler
Grey Shrike-thrush
White-browed Babbler
Superb Fairy-wren
Variegated Fairy-wren
Brown Thornbill
Yellow-rumped Thornbill
Yellow Thornbill
Weebill
Southern Whiteface
White-fronted Chat
Spotted Pardalote
Striated Pardalote
Silvereye
Magpie-lark
White-winged Chough
Dusky Woodswallow
Grey Butcherbird
Australian Magpie
Grey Currawong
Australian Raven
Little Raven
Common Starling
House Sparrow
Unusual Sighting
The most unusual sighting I have made in Geranium is a single Cattle Egret feeding on the school oval.
Birds Calling
Nursery
This afternoon I helped my wife Corinne in her nursery for about three hours. This included taking about 60 photos of the flowers of plants in the stock plant area and some in the nursery itself. Most of these photos turned out really well. Corinne needs some of these photos for the coming plant sale in Adelaide at the end of the month.
Bird Calls
I also did some more tidying up and weeding in the nursery. While I was doing that I was aware of the bird life calling all around. The White Plumed Honeyeater was very prominent, calling loudly and persistently. Little Ravens often passed overhead, their mournful calls cannot be missed. At one point two of them were in a tree nearby calling in turn, like they were having a conversation. Red Wattlebirds and their harsh ‘kok-karock†calls interrupted the ravens’ talkfest.
Pardalotes
In the moments of quietness after the departure of the noisy ravens the gentle Spotted Pardalotes’ contact calls filled the air around me as they searched the mallee trees for sustenance. The Striated Pardalotes seemed absent today; their far reaching call was noted yesterday. Perhaps they were just being discrete – or shy – today.
Grey Shrike Thrush
The sudden strident whistling of the Grey Shrike Thrush just above my head shattered my dreaming. Its strong melodious voice is far reaching in the mallee woodland around here; often it is the first bird I identify when out walking. Its call is hard to miss. A noisy cloud of pink Galahs squawks overhead, bringing a splash of colour to the drab grey sky. A Magpie adds to the chorus, chortling happily over near the shed.
Choughs
My attention is drawn to a family of nine White Winged Choughs flying secretively and quietly through the garden. Normally their mournful calls can be heard from a distance. Their silence is puzzling.
More Birding at Victor Harbor
Beautiful Morning
This morning the sun arose to a beautiful day. Bright sunshine, clear blue sky, gentle cooling breeze and the nearby sea of Encounter Bay, Victor Harbor a brilliant deep blue punctuated by stunning white waves breaking on rocks out in the bay. Perfect. After lunch we sat in front of the caravan and just watched the sea. How relaxing.
More Bird Sightings
Around the caravan park I observed about 30 different species without really trying. There were quite a few Little Ravens around, mostly flying overhead. Spotted Turtledoves and Feral Pigeons are also resident birds, as are Striated Pardalotes. I only saw a few Crested Pigeons nearby.
Parrots
Galahs were in evidence throughout the park and nearby gardens. In the tree in front of our caravan we watched two juvenile Galahs begging for food from their harried parents. They seemed old enough to fend for themselves; it must be easier to sponge off parents. In previous visits I have seen hundreds of Little Corellas; this year I only saw about three individuals. Adelaide Rosellas are also common in the area but I only heard two flying past the van. I have seen Yellow Tailed Black Cockatoos in this area in the past but not this time.
Birds of Prey
The only bird of prey I observed was a Black Shouldered Kite. I saw one several times over the weekend, presumably the same individual. The first time I saw it traversing the banks of the Inman River, occassionally swooping down to catch its prey in the grass of the bank. Later I saw it hovering over the sedge grass on the sand banks along the beach front.
Mammal Sighting
While standing on the beach taking photos of the yachts at anchor and of Granite Island we were suddenly aware of several dolphins in the bay between us and the island, some two hundred metres from the beach. They were too far to positively identify or photograph them but they were probably common Bottle-Nosed Dolphins.