Tuesday, March 10, 2015

Olympic Marmots

Marmota olympus
Olympic marmot, Marmota olympus

These rare animals occur only in the Olympic mountains of western Washington State at altitudes between 1700 and 2000 metres.  They breed only once every two years, and are declining in numbers.  Marmots are not early risers, emerging from their burrows only when it is warm and pleasant outside.  Like other marmots and many squirrels, they hibernate during the winter.

I photographed Olympic marmots in summer 2014 on Hurricane Ridge.  It was only on my fourth trek up to to the ridge that I was able to photograph them.  On the first visit, I saw marmots in three different locations, but there were lots of visitors around and I couldn’t approach close enough for a photograph without leaving the trail.  It is really important not to disturb these animals, and I did not want to encourage other visitors to try to get too close, so we just watched them through binoculars.  On the next two occasions it was cold and misty, so no marmots in evidence.

Early morning for marmots

Olympic marmots have black feet

On my fourth visit, fairly early in the morning, when no one else had yet arrived, there were three marmots out at the first spot where we had seen them previously.  Conveniently, they were closer to the trail this time.  The light was against me, as you can see here, in the image of two of them, but I managed to move round a little and one animal cooperated by perching atop a convenient rock.  This image shows the animal’s characteristic black feet.


Surveying the world

Sunbathing on a rock near its burrow
I found another marmot, also on a prominent rock close to its burrow, which was sunning itself and watching the world go by.  The Olympic National Park is monitoring marmot populations throughout the park, using volunteers under a Citizens Science program, in order to find out why they are declining and hopefully do something about it.


Wednesday, November 19, 2014

Two unusual birds in the southwestern United States


Montezuma quail (Cyrtonyx montezumae)


This male bird was photographed in Chiricahua National Monument in southern Arizona.  We were excited to see a family of quail on the side of Lookout Mountain.  Montezuma quail has a very limited range in the USA: in parts of southern Arizona, southern New Mexico and western Texas.  This secretive quail is declining in numbers, possibly because it is very sensitive to overgrazing.  It feeds on bulbs and tubers growing underground, in dense grassland and scrub country at higher elevations.  Because the bulbs provide a source of moisture, even in dry conditions, this quail is not dependent on free water so occupies arid habitats.  However, it appears to need summer rains as a cue for breeding.

Elegant trogon (Trogon elegans)



The elegant trogon occurs in very limited areas of southern Arizona, in canyons of oak and sycamore.  This female bird was photographed in Cave Creek, in southern Arizona.  I was very pleased to see it early one morning, as it flew towards us.  Females are less easy to spot than the male birds, which have a characteristic call.  The male bird is colourful, with a bright orange-red breast and metallic dark green head.  Elegant trogons that breed in Arizona migrate to Mexico for the winter.  Although the elegant trogon has a very limited distribution in the USA, it is relatively common in Mexico and as far south as Costa Rica.

Tuesday, May 13, 2014

Photographing the Commonplace





Female House Sparrow


I remember a photograph that I saw in an exhibition some years ago that made a great impression on me.  It was a close-up image of a male blackbird.  Blackbirds are so commonplace that usually no one will take the trouble to point a camera in their direction.  The photographer had chosen an angle that shed new light on a familiar subject and produced a memorable image.


Male House Sparrow



I cannot pretend that I have the imagination and creativity to emulate the photographer whose image I recall, but I was moved to grab a few images of the familiar house sparrow last week on a visit to Orana Park, our local wildlife park.  While we ate our lunch, watching the giraffes in the background, these little sparrows hovered expectantly awaiting the inevitable dropped crumbs.  We are careful eaters, so they soon moved off to another table occupied by several young children, but not before I had their likeness in my camera.

Thursday, May 8, 2014

Squirrels




I love photographing squirrels, and intend to write more about them later.  For the moment, I am posting images of three very different squirrels: a tree squirrel, a ground squirrel, and a chipmunk.  Marmots and prairie dogs are also ‘squirrels’, and more closely related to ground squirrels than are tree squirrels.



This tree squirrel is a Douglas squirrel (Tamiasciurus douglasii), which has been feeding on pinecones in the eastern Sierra Nevada Mountains of California. 


The ground squirrel pictured here is a thirteen-lined ground squirrel (Spermophilus tridecemlineatus), which inhabits the prairie country of the central United States.  It hides the entrance to its burrow by taking the excavated soil away, and tamping down the disturbed area around the entrance.



This little Uinta chipmunk (Tamias umbrinus) was photographed in the pine forest on the North Rim of the Grand Canyon.  Uinta chipmunks are unusual in that they often nest in trees, rather than on the ground like other chipmunks.

Tuesday, April 29, 2014

Clay Cliffs

Just pictures this week.  I have been away on a photography field trip, and then to a convention, so there was not a lot of time to add material here.  The field trip was to Otematata, in the Mackenzie Country, one of my favourite areas of New Zealand.  One fine sunny morning we visited the Clay Cliffs, near Omarama, and here are some of the pictures from that morning.












Friday, April 11, 2014

Northland Kauri Forest


Forest Canopy
Kauri trees (Agathis australis) are conifers in the family Araucariaceae, which grow very large.  They can be more than 50 m tall, develop a girth up to 16 m, and live for more than 2000 years.  The genus Agathis includes other kauri trees from Australia, SE Asia and the Pacific Islands.



Kauri tree

Kauri, Agathis australis


New Zealand kauris were heavily exploited for their timber and their gum in the past so they are far less common now.  Fortunately, there are many small areas of forest habitat in the north of New Zealand where kauri is regenerating well, across much of its original range.  These regenerating groves of trees are commonly found on steep ridges and hillsides.

Kauri bark and gum

Kauri trees have distinctive greyish-coloured bark, with a ‘hammer’ mark texture caused by  flaking pieces of bark.  There are both male and female trees, which produce cones of different kinds.  Male cones fall to the ground once they have released their pollen, while female cones take 3 years to mature, turning from bright green to reddish brown.  Once mature, they release their seeds.

Green kauri cone


Kauri trees produce a sticky gum, or resin that oozes from their bark, leaves and cones, fills in holes or damaged areas, and then hardens.  This protects the trees from disease, and allows them to grow to a very old age.  Kauri gum used to have high commercial value, mainly for use as a varnish.  Gum diggers extracted the gum from swamps and soils where kauri trees had grown in earlier times; dropping branches, and eventually falling to the ground and becoming covered by debris.

Forest remnant in Whangarei

 Many other trees grow in kauri forest.  Some are large, some small, and many of them are restricted to northern parts of the country, including tanekaka, or celery pine (Phyllocladus trichomanoides) pictured here.  The tree fern is another common feature of these forest areas.

Tanekaka, celery pine

Tanekaka, celery pine

Tree fern

Monday, April 7, 2014

Waipu Cove in Northland




Waipu Cove

After our long hike, we caught the bus back to Auckland and hired a car for a few days to explore some of the parts of Northland we had previously walked through.  One of our favourite spots had been Waipu Cove, where in November, fairy terns had been on their nests.  Although they had finished breeding by late March, we saw a few on the beach, with other terns, godwits and oystercatchers.  I shall return another time with my telephoto lens for some photographs of the birds.

Debris from cyclone
Shells

Seaweed

Kelp attached to rock


However, the beach was littered with debris from the recent cyclone.  We picked through a large array of shellfish, crabs and other sea creatures, some that we had never seen before.  There were many different seaweeds including kelp with large pieces of rock attached, evidence of the violence of the storm.

Dunes at Waipu Cove


We stayed at Waipu Cottages and Camping, which borders a nature reserve protecting a stretch of beach along with the lagoon of the Waipu River behind.  From our tent, it was a short walk across dunes to the beach.  Shags nested in the trees bordering the lagoon.

Waipu Cave

We drove inland one day to Waipu Cave, which has attractive formations near the entrance.  There is also a walkway that goes through forest to a viewpoint looking out over the sea.  It is a magnificent coastline.

Sunset from Waipu Cove