I love to play with toys. Sometimes get too carried away with it.
Saturday, March 27, 2010
Love Oranges!
Wednesday, March 24, 2010
Icy Streets
Mountain Road
Sunday, March 21, 2010
Fresh Snow
I wanted to take a picture of the snow surface not yet disturbed by car tires, but that seems impossible. Many people start working at very early hours. How many snow falls are we going to get before spring finally arrives?
Saturday, March 20, 2010
The River at the end of winter
The ground is messy around this time of the year. Dirt starts show in melting snow. Wet and splashy everywhere. At several snow dump sites along the river, huge quantity of snow is going to be pushed out into the river, which is probably not a very good thing for the health of river ecosystem. Alternative methods to clear the riverside of snow are gradually being implemented.
Wednesday, March 17, 2010
River Watching at Night
I got a chance to look over a small stream after dark, which flows through the town. With far fewer cars passing by than during the day, I could hear the river water make literally crackling sounds. The riversides were frozen and covered with snow. The area was brightly illuminated by street lamps, and shining and dancing snow flakes. It was quite a mysterious experience!
Tuesday, March 16, 2010
Whale Watching (3)
Whale Watching (2)
This is how close we could get to whales, or rather, they came to us and swam around the boats. The whale-watching boats stop the engine completely when whales are close to them. They re-start the engine very carefully so that the screw won't hurt the whales. Water was really clear so that we could watch 2 adults and 1 young. The guide said they were probably a family.
Whale Watching(1)
I went whale-watching with my younger son last March. It was so difficult to take photos of people on the boat next to ours, with both of the boats bobbing in all directions. Besides, it was rainy... This photo is the best I could manage.
They are waiting for humpback whales to jump out of water.
Unfortunately, it was towards the end of March, when humpbacks' display behavior was subsiding as they were ready for a long journey to the other side of the world. So, we were not able to watch their famous spectacular jumps sometimes as high as 4m above water. But, we all enjoyed being out in the ocean to watch humpback whales.
They are waiting for humpback whales to jump out of water.
Unfortunately, it was towards the end of March, when humpbacks' display behavior was subsiding as they were ready for a long journey to the other side of the world. So, we were not able to watch their famous spectacular jumps sometimes as high as 4m above water. But, we all enjoyed being out in the ocean to watch humpback whales.
Sunday, March 14, 2010
Can we sex crows? (7)
These differences were also seen in the Hooded Crows which I got a chance to observe in Rome two years ago. The smaller one was observed to solicit courtship feeding from the larger individual, which indicates almost with certainty that the smaller one was a female. As you can see, the female has the thin neck line and less massive wing musculature. Although not a good shot, the male's upper bill had a small hook, while the female's upper and lower bill tips meet like a pair of forceps.
You may not always be able to tell the sexes of crows. But in many cases you can, by looking at the combination of all or parts of the following characteristics: body size, wing musculature, the neck size, bill structure/size, plumage coloration/sheen and of course behavior.
Note: These differences between sexes may pertain only to the crow species which I have had the chance to observe. Thus, they are not necessarily applicable to the other species, although I have the impression that they are, at least in some aspects.
Can we sex crows? (6)
The previous 5 posts were of the Carrion Crows (Corvus corone). The male and female characteristics seem to hold true with other species. This photo is of a known pair of the Jungle Crow (Corvus macrorhyunchos). As indicated by the arrows, the upper bill of the male is hooked and longer than that of the female.
Can we sex crows? (5)
Unfortunately, I couldn't find the best shots of a typical male. The above two photos are of the same known individual. He looks miserable due to molting. He is a much nicer-looking guy in breeding season. Despite his condition, I think you can see the shoulder muscle is well developed.
As indicated by an arrow, his upper bill is slightly hooked and typically longer than that of the lower bill.
Can we sex crows? (4)
This is another photo of a female crow, indivicually recognized by the leucostic primaries. The reason why we can tell it is a female is that she does the incubation. Though not a very good capture, I think you can see that the bill and the wing musculature are typical of females.
It is impossible sometimes to tell the sex of a lone crow without any background information about the bird. But it is often possible if you get used to spotting the male/female characteristecs. Furthermore, the plumage of females is duller than that of males.
It is impossible sometimes to tell the sex of a lone crow without any background information about the bird. But it is often possible if you get used to spotting the male/female characteristecs. Furthermore, the plumage of females is duller than that of males.
Can we sex crows? (3)
This is the closeup of the female I mensioned in the previous photo. From the ruffed-up nostril feathers and partial leucostic tail feathers, we can tell that this is the same female.
Female crows tend not to have a hook on the upper bill. The lengths of upper and lower bills tend to be the same, or with very little difference. This is one of the characteristic of a female crow. A typical male crow has, on the other hand, a "hooked" upper bill, or the upper bill considerably longer than the lower one. But again, you have to be aware of the fact that there are individual differences.
Female crows tend not to have a hook on the upper bill. The lengths of upper and lower bills tend to be the same, or with very little difference. This is one of the characteristic of a female crow. A typical male crow has, on the other hand, a "hooked" upper bill, or the upper bill considerably longer than the lower one. But again, you have to be aware of the fact that there are individual differences.
Can we sex crows? (2)
This pair is the one I've been observing for a few years. Despite the general impression that all crows look alike, individual crows are all so different with unique physical characteristics, only if you observe them closely. For example, in the female of this pair, her tail feathers are partially leucostic. And, the feathers covering her nostrils are ruffed up and looking like a rump probably because they have curles. These characteristics seem to be genetic and do not change from year to year.
From this photo, you can see that the male is larger and has more developed wing muscles than the female.
There are of course individual differences in body size and considerable overlap between sexes, so that you may not be able to tell apart a large female from a small male. Size alone is not a good indicator. However, the well-developed wing musculature and thicker neck line are good indictors that it is a male.
From this photo, you can see that the male is larger and has more developed wing muscles than the female.
There are of course individual differences in body size and considerable overlap between sexes, so that you may not be able to tell apart a large female from a small male. Size alone is not a good indicator. However, the well-developed wing musculature and thicker neck line are good indictors that it is a male.
Can we sex crows? (1)
As most birders know, only female crows incubate. That is, if a crow is sitting in a nest incubating, it is almost invariably a female. A female corvid stays very close to the nest often brooding over the nestlings, probably until the young gains sufficient thermoregulation ability. The male brings food to his mate and nestlings in addtion to that for himself during this period. Thus, it is presumed that the work load of a breeding male is considerably large. (This is also true with other corvids like magpies and jays)
Based on the observation of a number of breeding crow pairs, I have found it possible to tell apart sexes of crows to a considerable extent. I understand very well that the accuracy has to be limited depending on observation and photographing conditions and that I have to keep in mind that I shouldn't make premature identifications if sufficient observation and supporting evidences/data are not available.
Bearing the above-mentioned limitations in mind, I would like to show you how crows can be visually sexed (with supporting behavioral observations) in some cases.
The photo is that of a female Carrion Crow incubating.
Based on the observation of a number of breeding crow pairs, I have found it possible to tell apart sexes of crows to a considerable extent. I understand very well that the accuracy has to be limited depending on observation and photographing conditions and that I have to keep in mind that I shouldn't make premature identifications if sufficient observation and supporting evidences/data are not available.
Bearing the above-mentioned limitations in mind, I would like to show you how crows can be visually sexed (with supporting behavioral observations) in some cases.
The photo is that of a female Carrion Crow incubating.
Saturday, March 13, 2010
Tree sparrows in the shrub
Hedge and Vines
Cats are tough and hardy around here.
Usually cats tend to avoid the cold and stick around the warmest spots in the house. Cats in the snow country are tough and hardy and never hesitate to go out even when snowing. They patrol their territories every single day no matter how cold and snowy it is. They leave foot prints along almost identical patrol routes every day.
Friday, March 12, 2010
The Winter Olympics
Thursday, March 11, 2010
Breaking Ice and Snow
Some people cannot wait till snow melts and goes away. So, they break sheets of compressed snow to pieces and let it melt quickly. I myself want to leave snowand ice untouched and let melt only by the power of nature. That way, I think, we can keep the microclimate cooler longer and curve global warming even by just a tiny bit.
Sunday, March 7, 2010
Snow continues to fall.
Capture without Intension
The Blanket of Tranquility
Tree Sparrows
A White-tailed Eagle
River was not frozen!
A Trip to the countryside
Saturday, March 6, 2010
Thursday, March 4, 2010
Hello from my home sweet home!
It snowed again this morning.
Monday, March 1, 2010
Snow Flakes
My Favorite Perch
Empty Park
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