Old Harrier in dreams
A low-flying hunter — patient ground-level search rather than a sudden strike.
How old changes the reading
In its old form, the symbol carries long history — accumulated knowledge, accumulated weight, and the kind of presence that does not need to assert itself. Old versions of symbols in dreams are often offering you a sentence you needed to hear from someone who has seen many cycles.
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.