(This measure has not been amended since it was passed by the House on December 7, 2009. The summary of that version is repeated here.)

Migratory Bird Treaty Act Penalty and Enforcement Act of 2009 - Amends the Migratory Bird Treaty Act to subject a person who kills or wounds any migratory bird in an aggravated manner in violation of such Act, in lieu of any penalty for such violation, to: (1) a fine and/or imprisonment for no more than a year for the first violation; and (2) a fine and/or imprisonment for no more than two years for subsequent violations. Defines "aggravated manner" to mean deliberately and in a manner that: (1) demonstrates indifference to the pain and suffering of the bird; or (2) involves actions that would shock a reasonable person.

Grants the Secretary of the Interior authority provided for undercover or enforcement operations under the Fish and Wildlife Improvement Act of 1978 to detect and prosecute violations of this Act, including the authority to use funds for payments for information, rewards, or evidence concerning such violations.

Migratory Bird Treaty Act Penalty and Enforcement Act of 2009 - Amends the Migratory Bird Treaty Act to subject a person who kills or wounds any migratory bird in an aggravated manner in violation of such Act, in lieu of any penalty for such violation, to: (1) a fine and/or imprisonment for no more than a year for the first violation; and (2) a fine and/or imprisonment for no more than two years for subsequent violations. Defines "aggravated manner" to mean deliberately and in a manner that: (1) demonstrates indifference to the pain and suffering of the bird; or (2) involves actions that would shock a reasonable person.

Grants the Secretary of the Interior authority provided for undercover or enforcement operations under the Fish and Wildlife Improvement Act of 1978 to detect and prosecute violations of this Act, including the authority to use funds for payments for information, rewards, or evidence concerning such violations.

Migratory Bird Treaty Act Penalty and Enforcement Act of 2009 - Amends the Migratory Bird Treaty Act to: (1) make a person who intentionally and maliciously takes any migratory bird by any manner not allowed by such Act guilty of a felony and subject to a fine of up to $50,000 and/or imprisonment for up to two years; and (2) make a person who intentionally and maliciously commits any other act or omission in violation of such Act guilty of a felony punishable by a fine of up to $50,000 and/or imprisonment for up to two years.

Requires the Secretary of the Interior or the Secretary of the Treasury to pay rewards to persons who furnish information that leads to an arrest or a criminal conviction for any violation of such Act.