I spent an hour watching the treecreepers feeding their chicks today and in that hour they brought food 30 times. So if they start feeding at say 6am and feed till 6pm that's 360 food trips every day. If they have 6 chicks thats 60 feeds per chick every day for the 20 days till they fledge!!!!
And we think one trip to the supermarket a week is a pain!