The work to be done consists of furnishing all materials, equipment, tools, labor and incidentals as required for tree pruning, tree removal, tree stump removal and tree replacement as approved by the City. In general, all right-of-way trees on specified streets or neighborhoods will be pruned, with limited exceptions, commonly known as grid pruning. The City will be broken into grids or zones, as determined by the City. The Contractor would be assigned to prune all the trees within that grid/zone before proceeding into the next grid or zone, unless otherwise directed by the City. Grid pruning services will occur each year on a start date determined by the City, outside of bird nesting season. The Contractor shall cease work in a tree if a nest is found and is determined to be active, unless given written permission by the City. The Contractor will be available for tree removals, stump removals, tree replacements, emergency call-out services, and specialty tree crew rental services on a limited, as-needed basis throughout each year.