Can a 3 week old sparrow be suffering from severe calcium deficiency?

Question

I rescued a house sparrow one week ago. I have been feeding it Iams cat food with boiled egg yolk for about a week. Yesterday it began shaking and has been today too. It has a healthy appetite but it won't stop shaking. It is very tame, so it is not doing this from fright. I noticed on some sites, it says to feed baby birds a calcium supplement. Could this cause the shaking? I cannot take it to a rehabilitator as they are not taking sparrows and there are no avian vets nearby.

Answer 1

Yes, this bird is most likely suffering a calcium deficiency.  You should have been adding calcium to the diet all along in the form of antacid tablets (Tums):

This is the mixture you SHOULD be using:

1 cup soaked dog/cat food

1/4 cup of applesauce

1 hard boiled egg

Avian vitamins (follow dosage on package)

Around 750 mg calcium (TUMS or other generic antacid)

Water

I tried advising you on the care of this bird when you posted before..but you just ignored me and sent me hate mail because you didn't like my answer.