Hummingbird drinking tubes

The specially by Avian Bird Food designed and hummingbird drinkers are specially blown brown glass tubes and have a beveled edge on the bottom, allowing the hummingbirds to consume the residue during the day. This residue contains many good nutrients. The top of the drinker is specially blown with a inside edge.
This has two advantages:

1. it prevents the plug coming out, which means that your  hummingbird has no food.
2. the upper edge is thickened or strengthened so that by insertion of the silicon bung the drinker will not split.

All tubes are supplied with a silicone plug. Make sure that your drinkers are always clean and sterilized.
Candida infections are disastrous for your hummingbird.

Use the Avian sterilization tabs.