I dont inject my peafowl. Here is another Hopkins article on medicating them orally... same dosage. Some people believe that injecting them breaks down muscle tissue.... and medicating them orally is just easier for me.
http://www.peafowl.org/ARTICLES/24/
If you dont have a second person to hold the bird. I lay them on the floor and literally sit on top of them straddling them. I use Tylan 200 1-2 cc for sinus issues. repeat in 2-3 days.
here are some other medications we can use if Tylan is not on hand.... taken from the UPA Forum.
Respiratory distress/swollen sinuses Terramycin powder 1 Tablespoon/gallon drinking water for 2-3 days.
Respiratory distress/swollen sinuses Baytril injectable 2.27% 0.05cc/lb given orally
Peachicks: dosage based on body weight as above.
Adult (bird 1+ year): 1/2cc given orally
Respiratory distress/swollen sinuses Baytril tablets, 22.7mg Crush (2) 22.7mg tablets per quart drinking water.
Medicate birds for 3 days.
Respiratory distress/swollen sinuses Baytril tablets, 68mg Crush (3) 68mg tablets per gallon drinking water.
Medicate birds for 3 days.
Respiratory distress/swollen sinuses Baytril Liquid 32.3 mg/ml Mix 1 oz. per 5 gallons drinking water. Medicate for 3 days.
Mix 6cc per gallon drinking water. Medicate for 3 days.
Respiratory distress/swollen sinuses Tylan 200 for cattle Adult birds:1-2cc given orally
Under 1 year: 1/2 to 1cc shot as above.
Respiratory distress/swollen sinuses Tylan powder 100 gm Mix 1 1/2 teaspoon powder in 1 gallon water. Mix well.
*Note: fecal sample required for accurate diagnosis Mix above solution with 5 gal drinking water.
Medicate birds for 2-3 days.