Thanks Charline, ... lately I need some encouragement. When heat and humidity move into the neighbourhood I become lethargic. You are right in resting your back because 'rest' is the main cure for backache from any source other than cancer, where the ache never goes away, or even gets better. I have been known to take a 650mm Acetominophen before heading out and I seldom carry the burden of a backpack these days unless I'm planning to hunker-down only a short distance from the car. Aside from carrying my camo cover, the backpack is always a good buffer to lean backward against while also sitting on a cushion. Sitting upright without the backpack would result in a backache in no time at all. When I was leaning against a piece of beach driftwood at Beaton Point in order to photograph the Piping plover I got a backache from the wood pressing against my lumber region, which wouldn't have happened if I'd brought my backpack. TransAtlanticGoose got me a high-end collapsible chair which would have been a great asset when I was waiting for the Marsh wren to make an appearance at Reesor (lower) Pond but it was so muddy that I figured the chair legs would get stuck under the sheer weight of my incompetence. Today seems less humid but I just read that it will also reach 28 degrees. I heard a Pileated WP yesterday, coming from the woodlot just across the street. I went out to look but by then it was gone. This morning, even now, Blue jays are screaming about some issue of contention, or they are just reminding me that I'm rambling on again.