Parashas Vayikra · Aliyah 2 · Passuk 14
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim (male/female not stated for birds; tumtum and androgynous fit).
English: “And if from the fowl” — male and female are not stated regarding fowl; therefore even a bird of doubtful sex or a hermaphrodite is fit for an offering.
Custom (silence of the verse) — what is not stated for birds is not required.
Tumtum and androgynous birds are acceptable as bird offerings.