URL Link to Calendar Month view from Existing View
I was able to resolve this. I was trying to redirect to a second calendar from the global header text of another calendar.  I took a closer look at the second calendar and noticed that it did not have a default date in the contextual filter.  It may have gotten deleted after the fact.  I deleted the second calendar view and recreated it according to required specifications. I then edited the first calendar's global header text to use "&lt;a href=&gt;" and it successfully redirected to the second calendar.