This blog introduces the life of a goshawk, a wild drama that unfolded in front of the caretaker in an urban park Tokyo Japan from July 2017 to December 2018.
A female moving in and out of the nest, holding something in her beak
Until now, she was a mother who stayed still in the nest and hardly moved, but it seems that the situation has changed a little.
This time I will introduce the situation at this time.
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The mother goshawk, who was always incubating in the nest, has begun to move frequently these days, leaving the nest and returning to the nest again and again.
Go to the branch just behind the nest, and immediately add something and return to the nest again.
What's in your beak?
An enlarged version of the photo above is shown below, which is blurry and difficult to understand, but you can see that it has something like a piece of meat in it.
Around the nest, it seems that there are several places where prey caught in the past is hidden and stored.
Because of the hatched chicks, the mother would have been steadily storing some of the meals that her husband had hunted and brought in, in case her husband's hunting did not go well.
Perhaps this behavior of going in and out of the nest was going to get the chicks little by little to feed the chicks the food hidden behind the nest.
I have something like a piece of meat in my mouth
The behavior of leaving the nest of the parent bird and returning to the nest had been seen days before this photo was taken.
Considering that, the eggs must have been hatching since that time.
With that in mind, it's already been many days since the eggs hatched, so the chicks will be a little bigger and their appetite will be increasing.
In the nest, hungry chicks should be waiting for their mom to bring food.
Going back further, the parent bird, which used to stay still on the nest and hardly moved, has become itchy and frequent.
Another change was that the head of the parent bird that was incubating was hidden in the nest material and only about half of its face was hidden during incubation, but the range in which it could be seen gradually increased.
As a result of gradually creating a space under the abdomen as the chicks grew, the position of the head may have gradually increased.
It seems that they are feeding the chicks the food they had in their mouth.
Although hidden in the nest and invisible, it seems certain that the chicks are hatching from these behaviors of the parent birds.
In the photo above, the mother who brought something like a piece of meat back to the nest seems to be feeding the chicks while tearing the food into small pieces.
Make sure there are no foreign enemies such as crows around you, and go to the hoarding place again.
After feeding the chicks and checking carefully for the parent birds that had no food at hand and for foreign enemies around them, we headed to the hoarding area again.
I'm sure the chicks' appetite is getting stronger day by day, and they will eat more than their mother thinks.
I'm looking forward to seeing the chicks from now on.
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to be continued
The growth of the chicks is summarized in the video Goshawk, Breeding Record 2018.
If you are interested, please click it.
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