http://pe.usps.com/text/pub52/pub52c5_007.htm#ep198129
526.4 Adult Fowl
526.41 General
Disease-free adult fowl may be mailed domestically when shipped under applicable law in accordance with DMM 601.1.7. Adult chickens, turkeys, guinea fowl, doves, pigeons, pheasants, partridges, quail, ducks, geese, and swans are mailable when properly packaged. Adult fowl must be packaged without food or water because liquids, moisture, and loose foodstuffs can cause damage to the shipping container, other mail, and Postal Service equipment during transport.
526.42 Mailability Requirements
The specific types of adult fowl listed in 526.41 and DMM 601.9.3.4 are mailable only when sent by Express Mail service under the following conditions:
The mailer must secure containers approved by the manager of Mailing Standards (see 608.8.0 for address).
The number of birds per parcel must follow the container manufacturer limits, and each bird must weigh more than 6 ounces.
Note: A list of the names, addresses, and telephone numbers of the companies that manufacture Postal Service-approved containers is published periodically in the Postal Bulletin and can also be obtained from the PCSC.
526.43 Claims for Adult Fowl
Indemnity claims for mailable types of adult birds and chickens sent via Express Mail service are paid only for loss, damage, or rifling, and not for death of the animals while in transit, if there is no visible damage to the mailing container. See DMM 601.9 and 609.
For more information on shipping live birds, see this thread: https://www.backyardchickens.com/forum/viewtopic.php?id=222358
526.4 Adult Fowl
526.41 General
Disease-free adult fowl may be mailed domestically when shipped under applicable law in accordance with DMM 601.1.7. Adult chickens, turkeys, guinea fowl, doves, pigeons, pheasants, partridges, quail, ducks, geese, and swans are mailable when properly packaged. Adult fowl must be packaged without food or water because liquids, moisture, and loose foodstuffs can cause damage to the shipping container, other mail, and Postal Service equipment during transport.
526.42 Mailability Requirements
The specific types of adult fowl listed in 526.41 and DMM 601.9.3.4 are mailable only when sent by Express Mail service under the following conditions:
The mailer must secure containers approved by the manager of Mailing Standards (see 608.8.0 for address).
The number of birds per parcel must follow the container manufacturer limits, and each bird must weigh more than 6 ounces.
Note: A list of the names, addresses, and telephone numbers of the companies that manufacture Postal Service-approved containers is published periodically in the Postal Bulletin and can also be obtained from the PCSC.
526.43 Claims for Adult Fowl
Indemnity claims for mailable types of adult birds and chickens sent via Express Mail service are paid only for loss, damage, or rifling, and not for death of the animals while in transit, if there is no visible damage to the mailing container. See DMM 601.9 and 609.
For more information on shipping live birds, see this thread: https://www.backyardchickens.com/forum/viewtopic.php?id=222358
