HERON and EGRET (a heron subspecies) as meat-eating「birds beside the path」foraging where they stalk frogs, fishes, and small furry mammalian vermin with exceptional striking speed as it lunges forward to grab prey, with the ability to stand patiently for long lengths of time as they stalk their prey. Bird pairs are (mostly) monogamous during a season, but they choose new partners for each nesting and breeding. These birds spread and hold both wings wide open to form shady darkened areas to attract prey, often using their feet to flush prey before striking. These birds also use bait to lure prey to within striking distance. HERONS also defecate spontaneously when startled.
「Some ornithologists have reported observing female herons attaching themselves to impotent mates, then seeking sexual gratification elsewhere.」
[ https://en.wikipedia.org/wiki/Heron 2020-01-16 ] as CHEATING, SCAM, FRAUD, SWINDLE.
「Birds with different methods」also describe HERONS:
「Herons also have a patch of feathers on their breasts and on their thighs called 'powder down.' These feathers are continuously breaking up into a fine powder, which the herons apply to any slime or other gooey stuff they might get on their bodies as they hunt. The powder absorbs the slime and crumbles away, leaving them relatively clean.」
[ https://www.wildernesscollege.com/bird-behavior.html 2020-01-16 ]
Applying all the above descriptions to other「birds beside the road」and「the method(s) of birds and chicks」when the shaman's various sneaky ways are taken into account as illustrated by the elements individually indicate FRAUD, CHEATS, as does the Japanese pronunciation: PROSTITUTES, STREET-WALKERS calling out while trying to snag another trick of small hairy vermin considered loathsome or repulsive (and, 'squashed frog' is a euphemism for human male genitals).
For what it is worth, some sources explain that the Japanese word for fraud (sagi) was derived from a shortened version of usagi meaning 'rabbit' that was sold during the Edo Era as rabbit meat (apparently, acceptable for strict adherents of Buddhism to eat) when the meat was actually from some other animal. While that seemingly apocryphal explanation may have occurred on a few occasions, this glyph seems far more likely as the source of the pronunciation of the word meaning FRAUD as sagi.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: heron
Japanese EDRDG: heron
Unihan extended: heron, egret; Ardea species (various)