Butterflies use their long tongue to sip nectar from flowers. They process this so efficiently that they don’t need to expel any solid waste. They prefer flat open flowers where the centre is clearly visible, like a daisy. But they will feed from a wide variety of flowers. Here are some that I have personally observed. (Mouse-over the image for more information.)
What are the white stickers on these Butterflies?
The butterflies with the white stickers have been tagged as part of a research project by the Monarch Butterfly NZ Trust. If you notice a butterfly in your garden with one of these stickers please go to their website and let them know. If the butterfly is moving about you may have difficulty reading the sticker! If you have a digital camera handy take a picture of the sticker and then zoom in to read the details.