N.Y. Comp. Codes R. & Regs. tit. 6, § 174.4 – Identification of birds.

(a) Except as authorized pursuant to section 174.3 of this Part, when a captive bred bird is sold or offered for sale, the bird must be marked with a seamless leg band or a butt-end leg band applied by a veterinarian as described in subdivision (b) of this section.
1. (1) butt-end leg bands must be visibly marked with the veterinarians identification number;
2. (2) In the event a band is removed for medical reasons a veterinarian licensed in the State of New York must either apply their own band with their identifying number or not band the bird. If the owner of the bird intends to sell this bird, it must be banded and the owner must notify the department within 10 days of replacement of the band of: the date of replacement; name and address of the attending veterinarian; the reason why the band was removed; and, the identifying number on the replacement band.
(b) Banding requirements.
(c) Pet stores and other retail or wholesale establishments dealing in birds other than those listed in section 174.3(a) of this Part must prominently display a sign visible to the public on the premises where such birds are offered for sale. Letters in the sign must be at least one-half inch in height and of contrasting color to the background. The sign shall contain the following:
1. (1) Notice to customers.
  Only captive bred birds may be sold in New York State. With the exception of certain common species, all birds offered for sale must be marked with a band. A violation should be reported to the New York State Department of Environmental Conservation at: 1-844-332-3267 or [email protected].
(d) A pet store or other retail or wholesale establishment dealing in birds other than birds named in section 174.3(a) of this Part must maintain records, including invoices and bills of sale showing when, where and from whom such birds were acquired. Such records must be open to inspection at reasonable hours by employees of the department and must be maintained during the time such birds are possessed by the pet store or retail establishment and for three years thereafter.
(e) Bird breeders shall keep and maintain on their premises complete records of the purchase and sale, application of seamless leg bands, transfers, breeding loans, and births and deaths of birds and shall make such records available for inspection at reasonable hours by employees of the department.