Yellow Canary in dreams
A bright voice in a cage — the early warning, and the cost of being the one who notices first.
How yellow changes the reading
Yellow colour is the dream's attention itself — the symbol in yellow is the symbol the dream specifically wants you to notice. Sometimes it is warmth, sometimes warning, often both at once.
The base reading of Canary
A canary in a dream carries two meanings the dream rarely separates. It is the early-warning system — the part of you that senses harm in the air before anyone else does — and it is the part of you that pays a price for that sensitivity. A singing canary is the dream telling you the signal is still live and worth heeding. A silent or dying canary is the dream noting that you have been working in an atmosphere that is quietly poisoning the part of you that used to sing first.