Two female suicide bombers blew themselves up on Friday in separate attacks on Baghdad pet bazaars, killing at least 73 people and wounding dozens, police said. The attacks were the deadliest in the Iraqi capital since 30,000 more American troops flooded into the centre of the country last spring.In the first attack, a woman detonated explosives hidden under her traditional black Islamic robe at about 10.20 am in the central al-Ghazl market. The weekly bazaar has been bombed several times since the war started but has recently re-emerged as a popular shopping venue as Baghdad security improved and a Friday ban on driving was lifted.Police said at least 46 people were killed and 82 wounded. Firefighters scooped up debris scattered among pools of blood, clothing and pigeon carcasses.About 20 minutes later, a second female suicide bomber struck a bird market in a predominantly Shiite area in southeastern Baghdad. That blast killed as many as 27 people and wounded 25, police said.The attacks shortly before the weekly Islamic call to prayer resounded across the capital were the latest in a series of violent incidents that have been chipping away at Iraqi confidence in the permanence of recent security gains.Police initially said the bomb was hidden in a box of birds but determined it was a suicide attack after finding the woman’s head, an officer said, speaking on condition of anonymity because he wasn’t authorised to release the information.At least four other suicide bombings have been staged by women since November, all in the volatile Diyala province northeast of the capital.Many teenage boys were among the casualties in the al-Ghazl bombing, according to police and hospital officials.Medical officials said those wounded in Friday’s attack were sent to five hospitals in the city due to the overwhelming numbers of victims.One pigeon vendor said the market had been particularly busy because it was a pleasantly crisp and clear winter day after a recent cold spell.“I have been going to the pet market with my friend every Friday, selling and buying pigeons,” said Ali Ahmed, who was hit by shrapnel in his legs and chest. “It was nice weather today and the market was so crowded.”He said he was worried about his friend, Zaki, who disappeared from sight after the blast occurred about 40 yards away from where they were standing.“I just remember the horrible scene of the bodies of dead and wounded people mixed with the blood of animals and birds, then I found myself lying in a hospital bed,” Ali said.There were conflicting details about the second blast in the New Baghdad area. The U.S. military said initial reporting indicated it was a suicide car bombing carried out by a woman, but Iraqi police said the female attacker detonated an explosives belt at the entrance to the bazaar. Casualty tolls also differed, with the military saying about 10 people were killed and 20 wounded and Iraqi police reporting 18 killed and 25 wounded. U.S. forces, meanwhile, have expanded offensives in central and northern Iraq, seeking to build on gains against al-Qaida.