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Sparrow 
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Hawks 
Mocking 
Bird 
Tree Sparrows, until a dozen or more of both kinds were 
singing at once, the trilling of several Juncos coming in, in 
the intervals, like a low accompaniment. I know of nothing 
finer in the way of bird music than one of these outbursts 
heard, as I heard them to-day, with the warm April sunshine 
lighting up the brown fields and the bracing north-west wind 
piping in the bare tree tops. 
While on our way to Concord just as we were entering 
the milage of Lincoln, we saw a Broad-winged Hawk soaring 
overhead at a moderate height. Its peculiar shape and markings 
made it quite unmistakable. A little further on a fine old 
male Marsh Hawk appeared, beating a meadow on the left of the 
road, following a ditch for some distance and keeping much 
of the time below the level of its banks. This bird appeared 
fully as white as an adult Herring Cull. 
( We left Concord at 3 P. M. and returned to Cambridge 
by way of the direct road to Waltham past Walden Pond. Nothing 
of peculiar interest was noticed until just as we were passing 
the Payson place when on the opposite side of the road just 
over the wall I saw what I took at first for a Shrike, sitting 
on tne top of a brush heap. The next instant it jerked up 
its tail and then flew into an arbor vitae hedge, when I at 
once recognized it as a Mockingbird. I got out of the buggy 
and followed it, when it flew up into an elm and then crossed 
a field to another elm, where I left it. It was evidently 
an old male but it was not in the mood for singing and kept 
absolute silence. 
