Opponents of a gay marriage bill being debated in Argentina are taking their message to the streets.

The bill was approved in May by Argentina's lower house, the Chamber of Deputies (la Camara de Diputados) and is being reviewed in the Senate General Law Committee. The committee has taken its hearing on the road, stopping at the cities of Salta, Tucuman, San Juan and Mendoza. The tour ends on June 28 and the full Senate is expected to take up the measure on July 14.

In those provincial capitals, opponents have begun protesting the proposal, LosAndes.com reported.

A large nationwide demonstration was organized on May 31 by Roman Catholic and evangelical churches opposed to gay marriage.

Marriage is “the union of a man and a woman and not between persons of the same sex,” Daniel Grilletti, an evangelical Baptist pastor with the Iglesia de las Casas, said.

The bill would give gay and lesbian couples all the rights and obligations of marriage, including the right to adopt children. A recently approved gay marriage law in Portugal bans gay couples from adopting.

Another protest is set for Saturday. In the capital of Buenos Aires, opponents say they'll demonstrate outside the Senate building and deliver a message to senators. Organizers say they oppose the bill because a family consists of a mom and dad. They are promoting the demonstration with fliers that read: “I love you mom and dad.”

Whether sufficient support exists in the Senate to approve the measure remains a difficult question to answer. An equal number of senators have either publicly endorsed or rejected the bill, but 17 senators have remained mum on their position.

Argentine President Christina Fernandez de Kirchner has said she would not block the measure from becoming law, if approved by senators.

Five gay couples have married in the country since December and another 60 have filed court challenges to do the same. Just days before deputies debated the measure, Alejandro Luna and Gilles Grall, a Frenchman, became the fifth gay couple to marry in Argentina.