Anyone know more about the Tzavuas Reb Yehuda Hachusid regarding keeping birds at home? Am I allowed to keep one in my office?
https://www.koltorah.org/halachah/halachic-perspectives-on-pets-part-i-by-rabbi-howard-jachter 12. A number of authorities disapprove of keeping animals as pets, such as Rabbi Yehudah HaChasid (Sefer Chassidim number 1038), who condemns owning birds as "adding nonsense" (Midrash Kohelet 6:11 seems to be the source for this statement). He adds that the money one spends on these birds should have been donated to charity. The Sephardic Halachic authority, Rabbi Chaim Pelaggi (Tochachat Chaim, Parshat Beshalach, page 126) cites this opinion of Rabbi Yehuda HaChasid. Rabbi Yaakov Breisch (Chelkat Yaakov 3:87) also writes that it is inconsistent with the spirit of Judaism to own a dog. However, he does not offer any proof to this assertion. In addition, a number of authorities object to owning dogs based on Kabbalistic teachings (Pele Yoetz, s.v. Kelev). However, these comments have not been incorporated into mainstream Halachic works such as the Shulchan Aruch. It should be noted, though, that it is unquestionably permissible for a blind person to own a guide dog. These dogs are well-trained and do not pose any danger. In addition, owning such an animal does not mimic "the abhorrent behavior of the uncircumcised" since the owner has a great need for the dog. It also should be noted that a number of rabbinic authorities believe placing a bird into a cage to be a violation of Tzaar Baalei Chaim - the prohibition against causing unnecessary pain to animals (see Rabbi J. David Bleich, Contemporary Halachic Problems, volume three, page 195, footnote 3).