Hi tweets,

Michael Price mentions
> ....Some other species which seem to be heading north as well right
> now, though as with the sapsuckers the migrant components are masked by
> locally-resident birds, are Great Blue Heron Ardea herodias, interior-race
> Downy & Hairy Woodpeckers Picoides pubescens P. villosus, Golden-crowned
> Kinglet Regulus satrapa, Spotted Towhee Pipilo maculatus and Song Sparrow
> Melospiza melodia.

Another species in this category would be the Winter Wren. I had on my
loop 1 to 3 of them every time, but today, in mid-day, I found 8. Besides
the big number, their behaviour was also a bit different; the residents
were normally quite shy, but the ones today were easily visible, even
curious or at least oblivious to me.

Another sign that migration is on: species numbers are up, UP. Jan: 40;
Feb: 37; March: 46; April (first quarter only): 39.

Reto Riesen
Dept. Chem., UBC
Vancouver, B.C.
riesenr at chem.ubc.ca