Contraception is becoming very important, especially among women looking to avoid unwanted pregnancies. Until recently, men utilize the condom like a contraceptive, sometimes not. With hormonal contraceptive methods open to avoid such accidents of contraception has grown to be easier for girls. Oral contraceptive pills are trusted by women in other hormonal contraceptive methods. It has been observed that hormonal contraception and also other contraceptive patches and rings are popular contraceptive among women. All these hormonal methods help the assistance of artificial female hormones present in them. Serious loss of cartilage can cause the bones to rub over the bones, changing the shape of the joints, forcing the bones out of their normal position. The best time to start breeding your finches happens when they're about 8 months old. There are finches that are highly dimorphic, meaning one can easily distinguish their gender by simply checking out their colors. An example of this is the Zebra finches. Society finches, conversely, can be a bit challenging on this department because they don?t have color patterns that tell whether these are female or male. One technique in determining the gender of the finches is as simple as placing at least four of which inside a cage and watching which birds get attracted to whom. Once spotted, you can place them in a separate cage in order to start breeding finches. Ankylosing spondylitis - a long-term inflammation that affects mainly the spine's bones, muscles and ligaments, resulting in stiff and joint fusion. Other problems may include swelling of tendons, eyes and joints.