Purple Harrier in dreams
A low-flying hunter — patient ground-level search rather than a sudden strike.
How purple changes the reading
Purple colour places the symbol between hot and cool — a reading that has both calm and intensity at once. The dream often uses purple for symbols that do not fit the usual categories cleanly. Take the reading more seriously than you would otherwise; the colour is asking you to.
The base reading of Harrier
A harrier in a dream is the dream's image of the patient, low-altitude search — the work of going back and forth over the same ground until what you are looking for is flushed out. Harriers fly close to the field; they do not impress, they cover. The dream brings the bird when the task in front of you is a methodical one, not a brilliant one, and the right answer is to keep sweeping. A harrier flying too high to be useful is the dream noting that you are looking from a vantage point that cannot show you what you actually need to find.