【巣箱速報】シジュウカラ 孵化18日目 大雨の日そして巣立ち (観察79日目：2021/06/04)

It's been 18 days since they hatched. It had been raining heavily since morning. The father was not very good at feeding in the dimly lit nest box...the mother was doing her best. The mother set a new record for the most number of feedings! The chicks also seem to have learned how to avoid danger, and when I went outside, all 11 of them froze at once... I guess it's safe to go outside now... (I'm a little sad...) Then they left the nest late in the evening in the heavy rain... I was surprised to see them leave the nest at such a time in such weather. I was surprised to see them leave the nest at such a time in such a weather, perhaps that was their aim, as they had many enemies. It took only six minutes after the first chick left the nest, and all eleven chicks left the nest hole by themselves. It was truly a beautiful departure and an easy farewell. Frequently Asked Questions Q What are the dimensions of the nest box? A. Internal dimensions: 100mm X 100mm X 180mm, nest hole 28mm diameter. Because I couldn't take the time, I stacked two commercial birdhouses on top of each other, and since there were two extra lids when I stacked two birdhouses, I used them to reinforce the front. In addition, a 12mm thick cedar board is piled up to reinforce the nest hole. I plan to renew it soon. Q. What kind of camera do you use? A. We are using a wired Chinese surveillance camera system sold on amazon for both inside and outside. The reason for using the wired type is... it's inconvenient, but you don't need to put it on the network to use it. I'm still in the process of trial and error, so I may post more details on my blog when I get to the point of stable operation. We only get one or two chances a year, so it's hard to gain experience. Q Where should I place the birdhouses? A It is installed directly under the eaves of the front door. Since I have a camera attached to it, I choose a place where it will not be directly exposed to rain. The height is about 2.5 meters from the ground. Q Isn't the birdhouse too small? Isn't it too hot? A The altitude here is 1,500 meters, and even on the day of the nesting, the minimum temperature was 10 degrees Celsius and the maximum was 15 degrees Celsius, so it may have been rather cold. I think the situation is a little different from nest boxes on the plains. As for the size of the nest box, I don't think there is anything wrong with it, since I have already witnessed the nest leaving three times in a row. On the contrary, I feel that a large nest box might be colder or more difficult for the parents to manage because the chicks might wander around. For the time being, this channel will be using this size of nest box. The background music was borrowed from MusMus, a free background music material company. Thank you MusMus for your wonderful music. Free background music materials MusMus: http://musmus.main.jp/ Youtube channel is here ↓    / @musmusch