When House Sparrows utilize tray or platform feeders, where else are they likely to feed?
Answer
What has been dropped directly onto the surface below that tray or onto the surrounding dirt/patio.
If feed is offered on a tray feeder, sparrows are equally likely to target food that has fallen onto the ground or patio surface directly beneath the tray.

Related Questions
Why is foraging very close to the ground a key reason for the House Sparrow's success near humans?Where are House Sparrows frequently observed scurrying about while looking for dropped morsels?What kind of food forms a substantial part of the House Sparrow's intake when feeding on the ground?What behavior related to poultry feeding demonstrates the sparrow's ground-level foraging strategy?How do House Sparrows often react to the same type of grain presented scattered versus neatly placed in an elevated bowl?What key ecological adaptation separates the House Sparrow's success from many native songbirds?When House Sparrows utilize tray or platform feeders, where else are they likely to feed?How does scattering feed widely impact management efforts aimed at attracting native ground-feeding sparrows?What management technique contrasts the House Sparrow's preference for ground feeding?What efficient tactic do House Sparrows use when consuming seeds found on the ground?What factor means that observed ground feeding near human habitation is often heavily biased toward grains?