Possible Clues:

• The little bird, although sick, had not lost it's appetite; one only has to tickle it
• That's one little bird I will have eaten, just to get my appetite going
• Excite through suggestive means
• I work in exhibition venue to provide excitement
• Arouse bird getting full sex returned with energy
• Tickle bird, poorly fed
• Thrill produced by bird, one by lake after dusk?
• Act provocatively
• Stimulate sensually, keeping it up well into the night
• Tickle bird, badly worried