I separated the old stuff from the new, since I figured many people would prefer not downloading a single 2000 image gallery with a bunch of images they don't want. And those who do can just combine them. The cutoff is at an arbitrary and subjective point. These two are replacing my years old gallery.

This doesn't include most of his Pokemon species illustrations. I've made a separate gallery for those as well, seeing as there are almost 800 of them.

Newer works gallery: https://e-hentai.org/g/3927634/531e94f6d3/
Pokemon works gallery:

Danbooru tag info:

Japanese name: フクロウ or 梟 (Fukurou)
The other names: フクロウナギ (Fukuro Unagi), ハシビコロウ (Hashibikorou), 梟 (Fukurou) or 白梟
Site name: フクロウ屋

URLs
https://www.pixiv.net/users/2289447
https://www.pixiv.net/stacc/mossgreen55778887
https://x.com/fukusan0807
https://x.com/i/user/1766746307291725824
https://fukurou-ya.booth.pm
https://fantia.jp/fanclubs/8483
https://fantia.jp/fukurouya
https://nijie.info/members.php?id=5314
https://pawoo.net/@fukurou0807
https://pawoo.net/@mossgreen55778887
https://w44lxjo2.fanbox.cc
https://www.pixiv.net/fanbox/creator/2289447
https://sketch.pixiv.net/@mossgreen55778887
https://skeb.jp/@0807fukurou_ya
https://fukurou0807.tumblr.com
https://misskey.io/@0807fukurou_ya
https://misskey.io/users/9du6anwz2s
https://www.melonbooks.co.jp/circle/index.php?circle_id=41075
https://ec.toranoana.jp/tora_r/ec/cot/circle/2UPAF36Q8474d36Td687/all
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG22466.html
https://www.dmm.co.jp/dc/doujin/-/list/=/article=maker/id=205169
https://linktr.ee/fukurouya_4th