Jan 31 Song from E not answered, I determined that this pair was ± 80pase (correction for line staggered thru brush) E of crossfence. I worked W of cross-fence after 10:40. No birds heard between creek and windmill W of fence by 10:55. I watched E along road ± 200 yards - all of tits were to S of road answered by me to E, later a few yds S of road where magnolia trunk split call Tree tree song vet over and over answered by bird to SW (in kind) Mate of first bird with it foraging silently. 1st retreated to E gradually Scolded from bird to SW at 11:08 - I followed later in more open growth WIND STRONG - one bird moving W seemed to be alone - gave vet notes regularly and vet - exchanged see see si put put with a bird to E and kept up so much chatter I was unsure of whether a second tit was with it. I watched this bird 11:15 - 11:23 as it foraged near base of extension and in a magnolia song tree ---- from E answered by this bird, shree ---- ---- ---- (8,8,8,10 phrases per song) then no more song from this bird in response to song of other. I moved N toward road pacing 65 steps to road. Calls vet vet behind me as I left. CLOUDY after 11:00