Select a plastic box a bit bigger than the size of a box of baby wipes.  Rubbermaid™ makes a selection of sizes of plastic sealable containers which would be perfect.  You may wish to collect contents for the box before choosing a box to be sure you are selecting the right size box for your collection. The size of some of the tools and the quantity you choose to place in your kit could vary significantly from a kit for a parakeet to the supply quantity you would want for a large macaw! The scope of this The Crucial Hemostats
 

The next item that is crucial is a set of hemostats.  Hemostats are like big tweezers but they clamp closed ensuring no slippage. The tips of the instrument have ridges to ensure a tight grip and no slippage. These can be purchased at a medical supply store, often at flea markets, and sometimes at pet shops.  If you have trouble finding a pair, look online or ask your vet if they know of a source.  I’ve usually had no problem locating a pair at a large flea market.  They may be a little more expensive than the other items for the Miscellaneous Products
 

Gauze pads, usually in 1 x 1 inch and 2 x 2 inch sizes are necessary.  I also include a supply of ear swabs placed in small snack-size baggie or box in the kit.  A few sterile cotton balls are also a good idea and can be stored with the ear swabs. If you have a large bird, you might want to place a roll of gauze in the kit as well.  Some first aid tape, the white cloth kind, should also be placed in the kit.  Scissors to cut the gauze or tape should be included as well.  A small pointed pair would be best.

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The next few miscellaneous items you probably stock in your own medicine cabinet. These items are hydrogen peroxide and isopropyl alcohol.   If do you stock these items, they could use the family supply without placing a bottle in the kit, but I don’t recommend it.  For easy of locating exactly what you need in an emergency, get some small travel sized bottles or purchase small empty bottles and fill with each product from your home supply.  Place clear and easy to read labeling on each bottle.  In an emergency you don’t want to have to smell which product is which.  You could also purchase alcohol gauze pads which are pre-moistened with alcohol and come in a square tear-open pack, would avoid the need of having a bottle for the alcohol.  Also include a bottle of Visine or saline solution for eye wash or wound washing.

Place a snack-sized, for small bird, or larger baggie, for the large bird, of corn starch, clearly labeled in the kit as well.  This can be used for several purposes that we will get to in the use of the first aid kit on each specific problem.  Corn starch, if sealed properly, has a long shelf life, but you should consider changing this supply at least every two year to so.