Yes, it’s well know as the bird that tells the arrival of spring in Japan, but the bird in the picture is a Japanese white-eye (Mejiro). Bush warblers are really cautious, so you can rarely see them even when you can hear them.
That’s because they are bland and have a nice and sweet taste to it. As you know, puffer fish have nerve toxins called tetrodotoxin in their livers and ovaries. If you eat the poisonous part, you will develop symptoms of poisoning such as numbness and vomit, and in some cases, death.
Japanese people feel the beginning of summer in July when cicadas begin to cry. The peak of summer is in August, when they give off the loudest cry. Then in September, they become quiet and made us realize it is late summer.