RENSSELAER FALLS The Indian Creek Nature Center will host a Wildflower Photography day to introduce photo enthusiasts to the charms and challenges of photographing spring wildflowers beginning at 9:30 a.m. April 19. The day starts with an introductory discussion of interests and techniques. Then photographers will take to the trails to discover what is in bloom. To get the most out of the morning your camera should be able to shoot at least moderate magnification. Space is limited. The group will begin by meeting up at the East Entrance.