Talk:Monarch butterfly

New reference
Please excuse the following reference in its 'raw' and without the correct 'wiki' mark up language that is required to include it in the article. The following reference is from a very reputable organization - Monarch Watch. The map that exists on the webpage: http://monarchwatch.org/tagmig/spmap.htm suggests that some monarchs migrate northwest from Mexico during the spring and actually end up in California. Discussion?

Minor typo correction in the third "Vision" paragraph.
In the third paragraph in "Vision", I changed "This is may be because flowers..." to "This may be because flowers...". But I haven't studied whether the consensus of the reputable scientific community considers the matter uncertain or certain. If the later it should be changed again to "This is because flowers..." of course. Cheers. --H Bruce Campbell (talk) 07:15, 15 February 2022 (UTC)

The look slightly different in Australia
Here in Australia, as far as i can tell, the wings dont have anywhere near the amount of white and black as shown here. I will try to get some images and put them up. 120.153.220.134 (talk) 12:23, 6 January 2024 (UTC)

"Vision" section is difficult to understand
The tetrachromic vision section is poorly written. Having read it three times now, I gather that there ae UV, blue, unfiltered green, and orange-filtered green receptors, with the differential between unfilt green and filt green being interpreted as shades of red / orange / yellow.

IS that correct? In any case, it needs to be better written. I'm not skilled enough to do that. 2001:8003:E40F:9601:2586:E005:AF6E:B56B (talk) 07:44, 7 January 2024 (UTC)

Significance of their bright colours.
I have read, a long time ago, that these butterflies are brightly coloured to warn potential predators that they are not good to eat because they are bitter because they feed on (bitter) milkweed. Also, that there are other butterflies / moths that are actually not bitter (and are good to ear) but mimic the Monarch as a bluff. Is that true? If so, someone better skilled at scientific writing than I should include that somewhere in this article. 2001:8003:E40F:9601:2586:E005:AF6E:B56B (talk) 07:50, 7 January 2024 (UTC)