Edited by DAFox - 6/20/10 at 3:35am. I would say that you have probably 9 or so more weeks to go before adding the babies. Put them next to your existing flock separated by fence. The chicks and the chickens should be close to the same size and it also depends on how many are in your existing flock.
1 Most often, the catheter is inserted through the urethra. This is the tube that carries urine from the bladder to the outside of the body.  Sometimes, the provider will insert a catheter into your bladder through a small hole in your belly. This is done at a hospital or provider's office.
Connect the catheter to the drainage bag. Use sterile medical tubing to allow urine to drain into a drainage bag. Secure the catheter to the patient's thigh or abdomen with tape. 1  Make sure you place the drainage bag lower than the patient's bladder. 2  Catheters work via gravity-urine can't drain uphill.