Building mix: Numbered-block neighbourhood with independent houses, apartments, converted buildings and commercial concentrations that can contain several bird-access planes on one property.
Outdoor conditions: Exposed terrace edges, shaded chajjas, dust and seasonal rain make inspection access useful. A claim of maintenance-free mesh is less helpful than a route for checking anchors, abrasions and service cuts.
Common layout cue: Jayanagar estimate photos should be grouped by front, rear, side and terrace elevations. Each set needs a wide context view plus the perch, equipment and fixing boundary so the same opening is not accidentally counted twice.