Bluebirds Study — Framed PieceThis is Glen's working process made visible a field study page from 1986 showing the Eastern Bluebird from multiple angles, with graphite sketches alongside partially developed watercolour passages and colour test swatches. The male's head is rendered in full colour detail at top; below, in pencil, studies of posture, perch position, and nest box entry. Raw colour washes orange, yellow, green mark the edges of the page where Glen was testing his